Question

Q23) A Girl mass 3 0Kg can go up 20 steps each of height 10cm in 20sec. Calculate the power of the boy. [g=9.8m/s²]​spam Ans will be reported.

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Answer 1

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Given :-

• Mass = 30 kg

• Steps = 20

• Height = 10 cm

• Time = 20 sec

To Find :-

• Power

Solution :-

The total height of travelled by girl = 10 × 20 = 200 cm

1 m = 100 cm

200 cm = 200/100 = 2 m

Now,

Power = mgh/t

Power = 30 × 9.8 × 2/20

Power = 30 × 9.8/10

Power = 3 × 9.8

Power = 29.4 Watt

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Answer 2

Here is the correct answer of your question:-

The power of the boy is 29.4 watt

Hope this helps you ❤️