College Physics
10th Edition
ISBN: 9781285737027
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Chapter 4, Problem 52P
A 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?
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A 4.00-kg block rests between the floor and a 3.00-kg block as shown in the above figure. The 3.00-kg block is tied to a wall by a horizontal rope. If the coefficient of static friction is 0.800 between each pair of surfaces in contact, what force must be applied horizontally to the 4.00-kg block to make it move?
A block weighing 15.0 N rests on the floor. (a) What size 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
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40.
block is to be on the verge of sliding up the
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40°
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Chapter 4 Solutions
College Physics
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