A man weighing 60 kg climbs a staircase carrying a 20 kg load on his hand. The staircase has 20 steps and each step has a height of 20 cm. if he takes 20 s to climb, then find his power.

Q: A man weighing 60 kg climbs a staircase carrying a 20 kg load on his hand. The staircase has 20 steps and each step has a height of 20 cm. if he takes 20 s to climb, then find his power.

(a) 100 W

(b) 160 W

(c) 200 W

(d) 900 W

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Ans: (b)