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II.
The Work Energy Theorem
6. TP 54. A 5.0-kg box has an acceleration of 2.0 m/s2 when it is pulled by a horizontal force
across a surface with uk = 0.50.
(a) Draw the FBD for the box. Then find the work done over a distance of 10 cm by (b) the
horizontal force, (c) the frictional force, (d) the net force. (e) What is the change in kinetic
energy of the box?
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