Modified Mastering Physics with Pearson eText -- Standalone Access Card -- for Conceptual Integrated Science
3rd Edition
ISBN: 9780135213339
Author: Hewitt, Paul, Suchocki, John, LYONS, Suzanne, Yeh, Jennifer
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 54TS
Find the strength of the net force on a crate that is pushed with a 30-N force and a 20-N force when:
(a) Both forces act in the same direction.
(b) The two forces act in opposite directions.
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A 4-kg block rests on a horizontal surface. The block is pulled by 20 N force acting 25⁰ above the horizontal but not enough to move the block.
Calculate the following:
(a) the friction force between the surface and the block.
(b) the normal force on the block.
(c) the coefficient of static friction.
Find the size of the net force produced by a 3 N and an 10 N force in each of the following arrangements.
(a) The forces act in the same direction.(b) The forces act in opposite directions.(c) The forces act at right angles to each other.
A block of wood of mass 5 kg rests on a horizontal surface. If a horizontal force of 20N is applied to the block and the block is still at rest, calculate the following:
(a) the friction force between the surface and the block.
(b) the normal force on the block.
(C) the coefficient of static friction.
Chapter 2 Solutions
Modified Mastering Physics with Pearson eText -- Standalone Access Card -- for Conceptual Integrated Science
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