Question

A boy of mass 55 kg and he is carrying a load of 5 kg on his head.
(i) If he is walking along horizontally through 8 m then the work done by
gravitational force is
(a) 6400 J (b) 640 J (c) 1600 J (d) 160 J
(ii) If he is waiting for his friend from 10 Minutes onwards so work done by man is
(a) 600 J (b) 6000 J (c) 4800 J (d) zero
(iii)If he is climbing a height 2 m then work done by gravitational force is
(a) 1600 J (b) 60 J (c) 1000 J (d) 100 J
(iv) If he is running with a velocity 10 meters then find kinetic energy he gained .

Answer 1

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A weekly market is held on a specific day of the week. Weekly markets do not have permanent shops.

Traders set up shops for the day and then close them up in the evening; then they may set up at a different place the next day .

Many things like vegetables, baskets, clothes, etc.

Hope it will be helpful..