Question

11. i) A coolie lifts a box of 15 kg from the ground to a height of 2 m. Calculate
the work done by coolie on the box.
(Given, g - 9.8 ms 2)


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Answer 1

Explanation:

given mass m = 15kg distance

2m g= 9.8

now force applied fw mg = 15 *9.8 = 147n

work done w= fx s = 147*2 = 294 n