A block slides on a rough horizontal surface from point A to point B. A force (magnitude P= 2.0 N) acts on the block between A and B, as shown. Points A and B are 1.5 m apart. If the kinetic energies of the block at A and B are 5.0 J and 4.0 J, respectively, how much work is done on the block by the force of friction as the block moves from A to B?

A block slides on a rough horizontal surface from point A to point B. A force (magnitude P= 2.0 N) acts on the block between A and B, as shown. Points A and B are 1.5 m apart. If the kinetic energies of the block at A and B are 5.0 J and 4.0 J, respectively, how much work is done on the block by the force of friction as the block moves from A to B?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Forms of Energy

Energy is described as the capability to accomplish a task, like the ability to push a block by applying force on it. It is a quantitative property that is used to accomplish work on an object.

Question

g = 10 m/s^2 *
%3D
Write your complete justification of the answer on your
paper. (To accept your answer, you should write it as
.0 just one-digit below the comma and without unit):
A block slides on a rough horizontal surface from point
A to point B. A force (magnitude P=2.0 N) acts on the
block between A and B, as shown. Points A and B are
1.5 m apart. If the kinetic energies of the block at A and
B are 5.0 J and 4.0 J, respectively, how much work is
done on the block by the force of friction as the block
moves from A to B?
40°
A

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