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A 5.0-kg block moves in a straight line on a horizontal frictionless surface under the influence of a force that varies with position as show in the figure below. 10- -5- (a) How much work is done by the force as the block moves from the origin to a = 8.0 m? (b) If the particle's speed passing through the origin was 4.0 m/s, with what speed does it pass the point r 8.0 m?

A 5.0-kg block moves in a straight line on a horizontal frictionless surface under the influence of a force that varies with position as show in the figure below. 10- -5- (a) How much work is done by the force as the block moves from the origin to a = 8.0 m? (b) If the particle's speed passing through the origin was 4.0 m/s, with what speed does it pass the point r 8.0 m?

University Physics Volume 1
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter7: Work And Kinetic Energy
Section: Chapter Questions
Problem 88AP: Consider a particle on which a force acts that depends on the position of the particle. This force...
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Can you explain how to solve for question (b). I did solve question (a) and my answer is 25 J. Please explain how to solve question in (b). Thank you

A 5.0-kg block moves in a straight line on a horizontal frictionless surface under the influence of a force that varies with position as show in the figure below. 10 5 -5+ -10- (a) How much work is done by the force as the block moves from the origin to z = 8.0 m? (b) If the particle's speed passing through the origin was 4.0 m/s, with what speed does it pass the point r = 8.0 m? too
Transcribed Image Text:A 5.0-kg block moves in a straight line on a horizontal frictionless surface under the influence of a force that varies with position as show in the figure below. 10 5 -5+ -10- (a) How much work is done by the force as the block moves from the origin to z = 8.0 m? (b) If the particle's speed passing through the origin was 4.0 m/s, with what speed does it pass the point r = 8.0 m? too
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