Physics for Scientists and Engineers
6th Edition
ISBN: 9781429281843
Author: Tipler
Publisher: MAC HIGHER
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Chapter 4, Problem 60P
(a)
To determine
The normal force exerted by the incline on the block.
(b)
To determine
The magnitude of the acceleration of the block.
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Two teams of nine members each engage in a tug of war. Each of the first team’s members has an average mass of 61 kg and exerts an average force of 1359 N horizontally. Each of the second team’s members has an average mass of 73 kg and exerts an average force of 1363 N horizontally.
(a) What is the acceleration of the two teams? Give this as a positive value.
(b) What is the tension in the section of rope between the teams?
let the mass of the block be 8.5 kg and the angle be 30. Find (a) the tension in the cord and (b) the normal force acting on the block. (c) If the cord is cut, find the magnitude of the resulting acceleration of the block.
A crate filled with oranges is being pushed across a floor at constant velocity. The mass of the crate is 50 kg. (a) If the frictional force is equal to 100 N, what is the magnitude of the horizontal pushing force? (b) The crate then reaches another section of the store, whose floor has been recently polished so that friction is reduced by 20% of its value in the previous section. What is the acceleration of the crate as it is being pushed by the same force as in part (a)?
Chapter 4 Solutions
Physics for Scientists and Engineers
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