Question

a body of mass 5 kg is lifted through a height of 20 m calculate the work done by the applied force

Answer 1

Answer:

0

Explanation:

in case of lifting angle between force and displacement is 90 and work done = f.s= fs cos theta

and here theta = 90 so cos theta = 0 and so the answer is zero

hope it helps

Answer 2

Answer:

Explanation:in case of lifting angle between force and displacement is 90 and work done = f.s= fs cos theta

and here theta = 90 so cos theta = 0 and so the answer is zero