Integrated Science
7th Edition
ISBN: 9780077862602
Author: Tillery, Bill W.
Publisher: Mcgraw-hill,
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Chapter 2.4, Problem 3SC
To determine
The reason for the ball that was rolling across the floor to slow down to a stop.
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Students have asked these similar questions
9. A ball rolls down a slope and off a flat floar. ignoring air
resistance, what force or farces act on the ball as it moves
through the air just after leaving the flat floor?
a. The weight of the ball acting vertically down.
b. A horizontal force that maintains the motion.
C A force whose direction changes as the direction of
motion changes
d. The weight of the ball and a horizontal force.
e. The weight of the ball and a force in the direction af motion.
8. An object is pulled across a rough horizontal surface with an applied force of 300 N [40o below the horizontal]. The applied force is slowly rotated down toward the horizontal, decreasing the 40o angle. What will happen to the force of friction acting on the object and the acceleration? a. Both increase.b. Both decrease.c. Friction decreases and acceleration increases.d. Friction increases and acceleration decreases.e. None of the above statements are accurate.
If a horizontal force is applied to an object, how can you tell if an object will start moving?
A.The object will start moving if any force is applied.
B.The object will start moving if the applied force is greater than the maximum static friction.
C.The object will start moving if the applied force is greater than the minimum static friction.
D.The object will start moving if the applied force is greater than the maximum kinetic friction.
E.The object will start moving if the applied force is greater than the minimum kinetic friction
Chapter 2 Solutions
Integrated Science
Ch. 2.2 - A quantity of 5 m/s2 is a measure of a. metric...Ch. 2.2 - Prob. 2SCCh. 2.4 - Prob. 3SCCh. 2.4 - Prob. 4SCCh. 2.5 - Prob. 5SCCh. 2.5 - Prob. 6SCCh. 2.6 - Ignoring air resistance, an object falling near...Ch. 2.7 - Prob. 8SCCh. 2.7 - Prob. 9SCCh. 2.9 - Prob. 10SC
Ch. 2.9 - A ball is swinging in a circle on a string when...Ch. 2.10 - Prob. 12SCCh. 2 - An insect inside a bus flies from the back toward...Ch. 2 - Disregarding air friction, describe all the forces...Ch. 2 - Can gravity act in a vacuum? Explain.Ch. 2 - Is it possible for a small car to have the same...Ch. 2 - Prob. 5CQCh. 2 - Prob. 6CQCh. 2 - Why should you bend your knees as you hit the...Ch. 2 - Prob. 8CQCh. 2 - Prob. 9CQCh. 2 - Prob. 10CQCh. 2 - Prob. 11CQCh. 2 - Prob. 12CQCh. 2 - Prob. 13CQCh. 2 - Prob. 14CQCh. 2 - Prob. 15CQCh. 2 - Prob. 16CQCh. 2 - Prob. 17CQCh. 2 - Prob. 18CQCh. 2 - Prob. 1PEACh. 2 - Prob. 2PEACh. 2 - Prob. 3PEACh. 2 - Prob. 4PEACh. 2 - Prob. 5PEACh. 2 - Prob. 6PEACh. 2 - Prob. 7PEACh. 2 - Prob. 8PEACh. 2 - Prob. 9PEACh. 2 - Prob. 10PEACh. 2 - Prob. 11PEACh. 2 - Prob. 12PEACh. 2 - Prob. 1PEBCh. 2 - Prob. 2PEBCh. 2 - Prob. 3PEBCh. 2 - Prob. 4PEBCh. 2 - If a space probe weighs 39,200 N on the surface of...Ch. 2 - Prob. 6PEBCh. 2 - Prob. 7PEBCh. 2 - Prob. 8PEBCh. 2 - Prob. 9PEBCh. 2 - Prob. 10PEBCh. 2 - Prob. 11PEBCh. 2 - Prob. 12PEB
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- A block of ice (m = 15.0 kg) with an attached rope is at rest on a frictionless surface. You pull the block with a horizontal force of 95.0 N for 1.54 s. a. Determine the magnitude of each force acting on the block of ice while you are pulling. b. With what speed is the ice moving after you are finished pulling? Repeat Problem 71, but this time you pull on the block at an angle of 20.0.arrow_forwardA steel ball is dropped onto a hard floor from a height of 1.50 m and rebounds to a height of 1.45 m. (a) Calculate its velocity just before it strikes the floor. (b) Calculate its velocity just after it leaves the floor on its way back up. (c) Calculate its acceleration during contact with the floor if that contact lasts (8.00105s). (d) How much did the ball compress during its collision with the floor, assuming the floor is absolutely rigid?arrow_forwardA 15.0-lb block rests on a horizontal floor, (a) What force does the floor exert on the block? (b) A rope is tied to the block and is run vertically over a pulley. The other end is attached to a free-hanging 10.0-lb object. What now is the force exerted by the floor on the 15.0-lb block? (c) If the 10.0-lb object in part (b) is replaced with a 20.0-lb object, what is the force exerted by the floor on the 15.0-lb block?arrow_forward
- Review. While learning to drive, you arc in a 1 200-kg car moving at 20.0 m/s across a large, vacant, level parking lot. Suddenly you realize you are heading straight toward the brick sidewall of a large supermarket and are in danger of running into it. The pavement can exert a maximum horizontal force of 7 000 N on the car. (a) Explain why you should expect the force to have a well-defined maximum value. (b) Suppose you apply the brakes and do not turn the steering wheel. Find the minimum distance you must be from the wall to avoid a collision. (c) If you do not brake but instead maintain constant speed and turn the steering wheel, what is the minimum distance you must be from the wall to avoid a collision? (d) Of the two methods in parts (b) and (c), which is better for avoiding a collision? Or should you use both the brakes and the steering wheel, or neither? Explain. (c) Does the conclusion in part (d) depend on the numerical values given in this problem, or is it true in general? Explain.arrow_forward5. Why is it easy to slip when there is water on a smooth floor? A. The water increases the friction between your feet and the floor. B. The friction between your feet and the floor changes from kinetic to static friction. C. The water is a lubricant and reduces the friction between your feet and the floor. D. The friction between your feet and the floor changes from sliding kinetic friction to rolling kinetic friction. 6. Which is the best example of gravity? A. A car hits a tree, and its motion stops. B. A breeze blows, and a sailboat moves. C. A person drops a ball, and it falls to the ground. D. A book is pushed, and it moves across the table. 7. Where is the gravitational force directed as you stand on the floor? A. backward C. forward B. downward D. upwardarrow_forwardA box is pulled at a constant speed, v, along a horizontal surface with a kinetic coefficient of friction less than 1. The person pulls with a constant horizontal force, F, on the box. The constant horizontal force the person pulls with: A. Has the same size as the weight of the box. B. Is greater than the weight of the box. C. Is less than the weight of the box. D. Is greater than the friction force.arrow_forward
- 1. Steve pushes a box across a level floor with a constant horizontal force. This causes the box to move at a constant speed, v. The force from Steve: a. has the same magnitude as the weight of the box. b. equals the sum of the box's weight and the total frictional forces opposing the box's motion. c. has the same magnitude as the frictional forces opposing the box's motion. d. has greater magnitude than the frictional forces opposing the box's motion. e. has greater magnitude than the weight of the box. 2. Steve now doubles the force he applies to th box from the previous problem. Which of the following is true? a. The box will move at double the previous speed. b. The box will move with a continuously increasing speed. c. The box will increase speed for a while, then move at a constant speed. d. The box will continue to move at the same speed for a while, then continually increase speed. e. The box will move at a greater constant speed, but not necessarily double the speed.arrow_forwardA gardener mows a lawn with an old- fashioned lawn mower. The handle of the mower makes an angle of 20° with the surface of the lawn. If a 219 N force is applied along the handle of 19 kg mower, what is the normal force exerted by the lawn on the mower? A. 100 N B. 640 N C. 111 N D. 310 N E. 250 Narrow_forward7. To pull an old stump out of the ground, you and a friend tie two ropes to the stump. You pull on it with a force of 500 N to the north while your friend pulls with a force of 450 N to the northwest. The total force from the two ropes is A. less than 950 N. B. exactly 950 N. C. more than 950 N.arrow_forward
- A force of 1.5 N makes an angle of 12° (counter-clockwise) with the +X axis. The Y component of the force is N. O a. 1.47 N O b. 0.31 N Oc.0.32 N O d. -2.35 Narrow_forwardA 1500 kg car rests on a horizontal surface. If the coefficient of friction between the tires and the pavement is 0.01, what is the horizontal force needed to make the car move with CONSTANT SPEED? a. 417N b. 19.6 N c. 147 N d. 159Narrow_forward9. Two friends are carrying a 500 N wooden slab along a 45° stairway. The slab is 1.0 m long and 0.40 m high. They each apply vertical upward force (black arrows) on the bottom edges of the box in such a way that the box remains parallel to the stairs as shown in the figure. What are the magnitudes of the forces exerted by the lower and higher friend, respectively? A. 250 N and 250 N B. 300 N and 200 N C. 350 N and 150 N D. 400 N and 100 N 45⁰arrow_forward
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