PHYSICS F/SCI.+ENGRS.,STAND.-W/ACCESS
6th Edition
ISBN: 9781429206099
Author: Tipler
Publisher: MAC HIGHER
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Chapter 4, Problem 79P
(a)
To determine
The force
(b)
To determine
The force exerted by the painter on the rope.
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Two boxes with masses m1= -60.0 kg and m2= -30.0 kg are connected by a light string that passes over a light, frictionless pulley One box rests on a frictionless ramp that rises at 40.0° above the horizontal, and the system is released form rest. (a) Make a force (or free-body) diagram of each of the boxes and include the coordinate system used for each box. (b) Write down Newton's 2ad law for each box in each relevant direction. (c) What is the magnitude of the tension in the string, and the magnitude of the acceleration of the boxes?
There are nine books in a stack, each with a weight of 10 N. The coefficient of friction between all the books is 0.45 as is the coefficient between the table and the bottom book. What horizontal push must I just exceed on the next to the bottom book to start sliding the top eight books off the bottom one?
A horizontal force of 12 N pushes a 0.50-kg book against a vertical wall. The book is initially at rest. If the coefficients of friction are = 0.60 and = 0.50 which of the following is true?
Chapter 4 Solutions
PHYSICS F/SCI.+ENGRS.,STAND.-W/ACCESS
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