Question

A crane 'A' lifts a heavy load in 5 seconds, whereas another crane 'B' does the same work in 2 seconds. Compare the power of crane 'A' to that of crane 'B'

Answer 1

Let the work done by both cranes be 'W'

Given,

Time taken by crane A to do work, t1 = 5 s

Time taken by crane B to do work, t2 = 2 s

PA : PB = 2 : 5