Physics

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'.

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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

Power of crane A, P_A = $\dfrac{W}{t_1}$

Power of crane B, P_B = $\dfrac{W}{t_2}$

$\dfrac{P$

P_A : P_B = 2 : 5

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