Question

A Pulley has mechanical advantage 4 if the load of 10 kgf is pulled by a distance of two meters in 10 seconds so the power developed by the effort is-
15w
20w
25w
4.9w
show the workings

Answer 1

Explanation:

4.9 as 10*2/4 = 5 either in qp they will give as 4.9 or 5 so it fine , all the best for ur board exam if ur in 10 th