A students caries a bag weighing 5 kg from the ground floor to his class on the first floor that is 2 m high. The work done by the boy is         (a) 1 J         (b) 10 J         (c) 100 J         (d) 1000 J

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Muskan Anand

7 months ago

Correct option is C) Work done = Change in potential energy = mg△H=5×10×2=100J 

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