Question

Ans. 100 J.
7. A coolie is holding a suitcase of 40 kg, first moves by 10 m on horizontal and then climbs 20 steps
of a stair case, each of 25 cm. height in 50 second. Calculate the work done by him and power
consumed. (g = 10 m/s²).​

Answer 1

Answer:

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Explanation:

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