Physics - W.E.P. Question with Solution | TestHub

PhysicsW.E.P.PowerEasy2 minPYQ_2020

PhysicsEasysingle choice

Two men with weights in the ratio $4 : 3$ run up a staircase in time in the ratio $12 : 11$ . The ratio of the power of the first to that of second is

Options:

Answer:

Solution:

$Power = \frac{work}{time} = \frac{energy}{time} = \frac{mgh}{t} = \frac{W h}{t}$ ( $W$ = weight )

$∴ \frac{P_{1}}{P_{2}} = \frac{W_{1}}{W_{2}} \times \frac{t_{2}}{t_{1}} = \frac{4}{3} \times \frac{11}{12} = \frac{11}{9}$ ( $h$ is same in both cases )

Stream:JEESubject:PhysicsTopic:W.E.P.Subtopic:Power

⏱ 2mℹ️ Source: PYQ_2020

Doubts & Discussion

Loading discussions...