Needs Complete typed solution with 100 % accuracy. 75. A ski jumper starts from rest 50.0 m above the ground on africtionless track and flies off the track at an angle of 45.0°above the horizontal and at a height of 10.0 m above the levelfem ground. Neglect air resistance. (a) What is her speed whenshe leaves the track? (b) What is the maximum altitude sheattains after leaving the track? (c) Where does she land rela-tive to the end of the track? qodem,Draw a diagram with the forces labeled.

Initial height, Initial velocity, Final height,

. A ski jumper starts from rest 50.0 m above the ground on a frictionless track and flies off the track at an angle of 45.0° above the horizontal and at a height of 10.0 m above the level ground. Neglect air resistance. (a) What is her speed when she leaves the track? (b) What is the maximum altitude she attains after leaving the track? (c) Where does she land rela- tive to the end of the track?

. A ski jumper starts from rest 50.0 m above the ground on a frictionless track and flies off the track at an angle of 45.0° above the horizontal and at a height of 10.0 m above the level ground. Neglect air resistance. (a) What is her speed when she leaves the track? (b) What is the maximum altitude she attains after leaving the track? (c) Where does she land rela- tive to the end of the track?

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter4: Motion In Two And Three Dimensions

Section: Chapter Questions

Problem 37P: Suppose the airplane in the preceding problem fires a projectile horizontally in its direction of...

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A ski jumper starts from rest 50.0 m above the ground on africtionless track and flies off the track at an angle of 45.0°above the horizontal and at a height of 10.0 m above the levelground. Neglect air resistance. (a) What is her speed whenshe leaves the track? (b) What is the maximum altitude sheattains after leaving the track? (c) Where does she land relativeto the end of the track?
A) A student throws a dart horizontally toward the center of a target, X, at a speed of 20 m/s as shown. The dart flies for 0.1 s and then hits below the center, at Y. How much lower, in m, does it hit? B) A drone at too great a height drops a box. The box drops straight down the ground and hits at 100 m/s smashing the contents. Neglecting air friction, approximately, how high, in m was the drone? C) is in the picture
A ball is thrown from the ground with a speed of 50 m/s at an angle of 35o above thehorizontal. If we neglect air resistance,a) What maximum height does the ball reach?b) How far from where it is thrown will the ball land?
(b) y-coordinate Need Help? Read It Watch It Submit Answer 2. DETAILS SERCP11 3.2.P.009. MY NOTES ASK YOUR TEACHER The best leaper in the animal kingdom is the puma, which can jump to a height of 3.7 m when leaving the ground at an angle of 45°. With what speed must the animal leave the ground to reach that height? m/s Need Help? Read It Watch It PRACTICE AOTHER MY NOTES ASK YOUR TEACHER 3. DETAILS SERCP11 3.2.P.014. From the window of a building, a ball is tossed from a height yo above the ground with an initial velocity of 8.90 m/s and angle of 22.0° below the horizontal. It strikes the gyound 6.00 s (a) If the base of the building is taken to be the origin of the coordinates, with upward-the positive y-direction, what are the initial coordinates of the ball? (Use the following as necessary: Yo: Assume SI units. Do not substitute numerical values; use variables only.) later. 10:03
QUESTION 21 12 poi A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of v; = 10.0 m/s. The cliff is h = 19 6 m above a flat, horizontal beach as shown in the figure. (g-9.8m/s-) (a)How long after being released does the stone strike the beach below the cliff? Answer (b) How far does the stone land on the beach from the base of the cliff (horizontal distance)? Answer. Sav Save All Answers Chck Save aia Subnlit to s ue and submit. Click Save Al Answers to save all answers.
a ball is thrown from a point of 1m above the ground. the initial velocity is 11.9 m/s at an angle of 30 degrees above the horizontal. what is the speed of the balll at gthe highest point of the trajectory?
5. A powerful grasshopper launches itself at an angle of 45° above the horizontal and rises to a maximum height of 1.00 m during the leap. With what speed vi did it leave the ground? Neglect air resistance
8. You fire a ball with an initial speed of vo at an angle o above the surface of an incline, which is itself inclined at an angle 0 above the horizontal. b) What angle o gives the maximum range, measured along the incline? Ignore air resistance.
You throw a stone horizontally from a height of 1.5 m with an initial speed of 10 m/s. Neglecying air resistance , what horizontal distance it covers before it reaches the ground?
Check Your Understanding If the two golf shots in Example 4.9 were bunched at the same speed, which shot would have the greatest range? When we speak of the range of a projectile on level ground, we assume R is very small compared with the circumference of Earth. If, however, the range is large, Earth curves away below the projectile and the acceleration resulting from gravity changes direction along the path. The range is larger than predicted by the range equation given earlier because the projectile has father to fail than it would on level ground, as shown in Figure 4.17, which is based on a drawing in Newton’s Principia. If the initial speed is great enough, the projectile goes into orbit. Earth’s surface drops every 8000 m. In 1 s an object falls 5 m without a resistance. Thus, if an object is given a horizontal velocity of 8000 m/s (or 18,000 mi/hr) near Earth’s surface, it will go into orbit around the planet because, the surface continuously falls away from object Thu is roughly the speed of the Space Shuttle in a low Earth orbit when it was operational, or any satellite in a low Earth orbit. These and other aspects of orbital motion, such as Earth’s rotation, are covered in greater depth in Gravitation. Figure 4.17 Projectile to satellite. In each case shown here, a projectile is launched from a very high tower to avoid air resistance. With increasing initial speed, the range increases and becomes longer than t would be on level ground because Earth curves away beneath its path. With a speed of 8000 m/s, orbit is achieved.
A basketball player shoots toward a basket 6.1 m ay and 3.0 m above the floor. If the ball is released 1.8 m above the floor at an angle of 60 above the horizontal, what must the initial speed be if it were to go through the basket?
Trying to escape his pursuers, a secret agent skis off a slope inclined at 30 below the horizontal at 60 km/h. To survive and land on the snow 100 m below, he must clear a gorge 60 m wide. Does he make it? Ignore air resistance.