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A block A, weighing 100 N is pulled up a...

A block A, weighing 100 N is pulled up a slope of length 5 m by means of a constant force F (= 100 N) as illustrated in Fig.

(a) What is the work done by the force F in moving the block A 5 m along the slope ?
(b) What is the increase in potential energy of the block A?
(c) Account for the difference in the work done by the force and the increase in potential energy of the block

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(a) 500 J (b) 300 J (C) The difference 1.c, 200 energy is used in doing work against the force of friction between the block and the slope which will appear as heal energy
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ICSE- WORK ENERGY AND POWER-EXERCISE-2(B) (NUMERICALS)
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