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Physics, 22.04.2021 17:40 tiaharris3191

Q) A man mass 60 kg climbs a staircase carrying a 20 kg load on his hand. The staircase has 20 steps and each step has height of 20 cm. If he takes 20 seconds to climb, his power is,
1) 160 W
2) 230 W
3) 320 W
4) 360 W
5) 460 W
Anyone plz help​

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