College Physics: A Strategic Approach (3rd Edition)
3rd Edition
ISBN: 9780321879721
Author: Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Question
Chapter 9, Problem 59GP
To determine
To find: The time taken by the lighter skater to reach the edge.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Two ice skaters, with masses of 50 kg and 75 kg, are at the center of a 60-m-diameter circular rink. The skaters push off against each other and glide to opposite edges of the rink. If the heavier skater reaches the edge in 20 s, how long does the lighter skater take to reach the edge?
Two ice skaters, with masses of 40.0 kg and 75.0 kg , are at the center of a 60.0 m -diameter circular rink. The skaters push off against each other and glide to opposite edges of the rink. If the heavier skater reaches the edge in 10.0 s , how long does the lighter skater take to reach the edge?
Ken and Barbie are skating together on a rink at 3.00 m/s.
Ken keeps asking Barbie how much she weights. Annoyed, Barbie pushes away from Ken so that she speeds up to 4.0 m/s and he slows down to 2.25 m/s in the same direction. Assuming that the friction is negligible, if Ken's mass is 70 kg, what is Barbie's mass?
Chapter 9 Solutions
College Physics: A Strategic Approach (3rd Edition)
Ch. 9 - Rank in order, from largest to smallest, the...Ch. 9 - Starting from rest, object 1 is subject to a 12 N...Ch. 9 - A 0.2 kg plastic cart and a 20 kg lead cart can...Ch. 9 - Two pucks, of mass m and 4m, lie on a frictionless...Ch. 9 - Prob. 5CQCh. 9 - Two students stand at rest, facing each other on...Ch. 9 - A 2 kg cart rolling to the right at 3 m/s runs...Ch. 9 - Automobiles are designed with crumple zones...Ch. 9 - You probably know that it feels better to catch a...Ch. 9 - In the early days of rocketry, some people claimed...
Ch. 9 - Two ice skaters, Megan and Jason, push off from...Ch. 9 - Suppose a rubber ball and a steel ball collide....Ch. 9 - While standing still on a basketball court, you...Ch. 9 - To win a prize at the county fair, youre trying to...Ch. 9 - Rank in order, from largest to smallest, the...Ch. 9 - Monica stands at the edge of a circular platform...Ch. 9 - If the earth warms significantly, the polar ice...Ch. 9 - The disks shown in Figure Qg.181 have equal mass....Ch. 9 - Curling is a sport played with 20 kg stones that...Ch. 9 - Two balls are hung from cords. The first ball, of...Ch. 9 - Figure Q9.21 shows two blocks sliding on a...Ch. 9 - Two friends are sitting in a stationary canoe. At...Ch. 9 - Two blocks, with masses m1, = 2.5 kg and m2 = 14...Ch. 9 - A small puck is sliding to the right with...Ch. 9 - A red ball, initially at rest, is simultaneously...Ch. 9 - A 4.0-m-diameter playground merry-go-round, with a...Ch. 9 - A disk rotates freely on a vertical axis with an...Ch. 9 - At what speed do a bicycle and its rider, with a...Ch. 9 - A 57 g tennis ball is served at 45 m/s. If the...Ch. 9 - A student throws a 120 g snowball at 7.5 m/s at...Ch. 9 - In Figure P9.4, what value of Fmax gives an...Ch. 9 - A sled and rider, gliding over horizontal,...Ch. 9 - Use the impulse-momentum theorem to find how long...Ch. 9 - a. A 2.0 kg object is moving to the right with a...Ch. 9 - A 60 g tennis ball with an initial speed of 32 m/s...Ch. 9 - A child is sliding on a sled at 1.5 m/s to the...Ch. 9 - An ice hockey puck slides along the ice at 12 m/s....Ch. 9 - As part of a safety investigation, two 1400 kg...Ch. 9 - In a Little League baseball game, the 145 g ball...Ch. 9 - A small, 100 g cart is moving at 1.20 m/s on a...Ch. 9 - A man standing on very slick ice fires a rifle...Ch. 9 - A 2.7 kg block of wood sits on a frictionless...Ch. 9 - A strong man is compressing a lightweight spring...Ch. 9 - A 10,000 kg railroad car is rolling at 2.00 m/s...Ch. 9 - A 5000 kg t rain car, with its top open, is...Ch. 9 - A 55 kg hunter, standing on frictionless ice,...Ch. 9 - A 9.5 kg dog takes a nap in a canoe and wakes up...Ch. 9 - Prob. 21PCh. 9 - A 71 kg baseball player jumps straight up to catch...Ch. 9 - A kid at the junior high cafeteria wants to propel...Ch. 9 - The parking brake on a 2000 kg Cadillac has...Ch. 9 - A 2.0 kg block slides along a frictionless surface...Ch. 9 - Erica (36 kg) and Danny (47 kg) are bouncing on a...Ch. 9 - At a wild-west show, a marksman fires a bullet at...Ch. 9 - A 20 g ball of clay traveling east at 3.0 m/s...Ch. 9 - Two particles collide and bounce apart. Figure...Ch. 9 - A 20 g ball of clay traveling east at 2.0 m/s...Ch. 9 - A firecracker in a coconut blows the coconut into...Ch. 9 - What is the angular momentum of the moon around...Ch. 9 - A little girl is going on the merry-go-round for...Ch. 9 - What is the angular momentum about the axle of the...Ch. 9 - What is the angular momentum about the axle of the...Ch. 9 - Divers change their body position in midair while...Ch. 9 - Prob. 37PCh. 9 - What is the impulse on a 3.0 kg particle that...Ch. 9 - A 600 g air-track glider collides with a spring at...Ch. 9 - Far in space, where gravity is negligible, a 425...Ch. 9 - A 200 g ball is dropped from a height of 2.0 m,...Ch. 9 - A 200 g ball is dropped from a height of 2.0 m and...Ch. 9 - Figure P9.43 is a graph of the force exerted by...Ch. 9 - A sled slides along a horizontal surface for which...Ch. 9 - A 140 g baseball is moving horizontally to the...Ch. 9 - Squids rely on jet propulsion, a versatile...Ch. 9 - The flowers of the bunchberry plant open with...Ch. 9 - a. With what speed are pollen grains ejected from...Ch. 9 - A tennis player swings her 1000 g racket with a...Ch. 9 - A 20 g ball of clay is thrown horizontally at 30...Ch. 9 - Dan is gliding on his skateboard at 4.0 m/s. He...Ch. 9 - James and Sarah stand on a stationary cart with...Ch. 9 - Ethan, whose mass is 80 kg, stands at one end of a...Ch. 9 - A small cart rolls freely along the floor. As it...Ch. 9 - Three identical train cars, coupled together, are...Ch. 9 - A 110 kg linebacker running at 2.0 m/s and an 82...Ch. 9 - Most geologists believe that the dinosaurs became...Ch. 9 - Two ice skaters, with masses of 75 kg and 55 kg,...Ch. 9 - Prob. 59GPCh. 9 - One billiard ball is shot east at 2.00 m/s. A...Ch. 9 - A 10 g bullet is fired into a 10 kg wood block...Ch. 9 - A typical raindrop is much more massive than a...Ch. 9 - A 15 g bullet is fired at 610 m/s into a 4.0 kg...Ch. 9 - Two 500 g blocks of wood are 2.0 m apart on a...Ch. 9 - A 495 kg cannon fires a 10.0 kg cannonball with a...Ch. 9 - Laura, whose mass is 35 kg, jumps horizontally off...Ch. 9 - A spaceship of mass 2.0 106 kg is cruising at a...Ch. 9 - At the county fair, Chris throws a 0.15 kg...Ch. 9 - Figure P9.70 shows a collision between three balls...Ch. 9 - The carbon isotope 14C is used for carbon dating...Ch. 9 - A 1.0-m-long massless rod is pivoted at one end...Ch. 9 - A 200 g puck revolves in a circle on a...Ch. 9 - Figure P9.74 shows a 100 g puck revolving at 100...Ch. 9 - A 2.0 kg, 20-cm-diameter turntable rotates at 100...Ch. 9 - Joey, from Example 9.10, stands at rest at the...Ch. 9 - A 3.0-m-diameter merry-go-round with a mass of 250...Ch. 9 - Disk A, with a mass of 2.0 kg and a radius of 40...Ch. 9 - Consider a golf club hitting a golf ball. To a...Ch. 9 - Consider a golf club hitting a golf ball. To a...Ch. 9 - Consider a golf club hitting a golf ball. To a...Ch. 9 - Consider a golf club hitting a golf ball. To a...
Knowledge Booster
Similar questions
- Two stationary hockey players push each other so that they move in opposite directions. One player has a mass 38.7 kg and a speed of 2.8 m/s. What is the mass of the other player if her speed is 3.8 m/s ? Neglect friction.arrow_forwardA 50.0 kg astronaut is standing on a 250.0 kg space capsule. He pushes off from the space capsule with a velocity of 10.0 m/s. How long does it take for him to reach a point 50.0 m away from the space capsule? (Hint: Not 5 seconds!)arrow_forwardA woman weighing 61.5 kg stands at one end of a 120-kg raft that is 6.00 m long. The other end of the raft is 0.500 m from a pier. So, before the woman moves, she is at a total distance of 6.50 m away from the pier. The woman walks toward the pier until she gets to the other end of the uniform raft and stops there. What is the distance between the uniform raft and the pier?arrow_forward
- Two rail cars roll without friction on a track. The rail cars have different masses. The heavier car is at rest. The lighter car is moving with speed v, hits the heavier car, and sticks to it. The combined two-car system then moves with speed v/5. What is the ratio of masses of the two cars? Ratio = mass of heavier car / mass of lighter car.arrow_forwardA loaded gun is dropped on a frozen lake. The gun fires, with the bullet going horizontally in one direction and the gun sliding on the ice in the other direction. The bullet's mass is 0.04 kg, and its speed is 275 m/s. If the gun's mass is 2.5 kg, what is its speed (in m/s)? m/sarrow_forwardAt a time when mining asteroids has become feasible, astronauts have connected a line between their 3070-kg space tug and a 5580-kg asteroid. They pull on the asteroid with a force of 307 N. Initially the tug and the asteroid are at rest, 436 m apart. How much time does it take for the ship and the asteroid to meet?arrow_forward
- A 10.0 kg dog jumps up in the air to catch a ball. The dog's centre of mass is normally 0.2 mabove the ground and he is 0.5 m long. The lowest he can get his centre of mass is 0.12 m above the ground and the highest he can get his centre of mass above the ground before he can no longer push against the ground is 0.30 m. If the maximum force the dog can exert on the ground is 1.9 times the gravitational force the Earth exerts on him, to what height, h, (in m) can he jump above the ground? Enter your answer only (with no units) accurate to two decimal places below. h = Type your answer.arrow_forwardA 2.50 kg box sits halfway up a 16.0 m long ramp that is inclined at an angle of 16.00. You shove a second box, of mass 1.50 kg, that's at the bottom of the ramp, so that it starts sliding up the ramp with a speed of 20.0 m/s. It hits the first box, sticks to it, and they both continue to slide up the ramp. The coefficient of kinetic friction between the boxes and the ramp is 0.200. Where, from the bottom of the ramp, do they come to rest?arrow_forwardA 68.9 kg woman and her 31 kg son are standing at rest on an ice rink. They push against each other for a time of 0.73 s, causing them to glide apart. (Assume friction is negligible during the push.) The speed of the woman immediately after they separate is 4 m/s.arrow_forward
- In the figure below, the masses of each object are: m₁ 1.00 kg, m₂ = 4.00 kg, m² = 6.00 kg. The labeled distances are: d₁ = 25.0 cm, d₂ = 104 cm, d3 = 60.0 cm (where d is the x distance for the center of the block). The height of each block is h₁ = 19.0,h₂ = 28.0 cm, and the h3 = 12.0 cm. Assume the center of mass for each individual object is at the center of the object. Hint: Consider the final center of mass (x,y) relative to the axes shown in the figure. Note the positions of the boxes relative to the axes and to one another. Determine the positions, x and y, of the center of mass for the system below. Enter to 3 significant figures Center of mass (x, y): ( d1 m1 d3 d2 h1 ✔cm = m3 m2 h2 ✔ cm) 11h3 Xarrow_forwardA loaded gun is dropped on a frozen lake. The gun fires, with the bullet going horizontally in one direction and the gun sliding on the ice in the other direction. The bullet's mass is 0.04 kg, and its speed is 320 m/s. If the gun's mass is 2.2 kg, what is its speed (in m/s)?arrow_forwardTwo astronauts, of masses 85 Kg and 120 Kg, are initially at rest in outer space. They push each other apart. What is their total separation after the lighter astronaut has moved 32.75 m?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Classical Dynamics of Particles and SystemsPhysicsISBN:9780534408961Author:Stephen T. Thornton, Jerry B. MarionPublisher:Cengage Learning
Classical Dynamics of Particles and Systems
Physics
ISBN:9780534408961
Author:Stephen T. Thornton, Jerry B. Marion
Publisher:Cengage Learning