Two men with weights in the ratio 4:3 run up | vedclass

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(D) Power is defined as the rate of doing work,given by $P = \frac{W_{work}}{t} = \frac{mgh}{t} = \frac{W_{weight}h}{t}$.Since both men run up the sam

Vedclass · Accepted Answer

$11/9$

Vedclass · Answer

(D) Power is defined as the rate of doing work,given by $P = \frac{W_{work}}{t} = \frac{mgh}{t} = \frac{W_{weight}h}{t}$.Since both men run up the same staircase,the height $h$ is the same for both.Given the ratio of weights $W_1 : W_2 = 4 : 3$ and the ratio of times $t_1 : t_2 = 12 : 11$.The ratio of their powers is $\frac{P_1}{P_2} = \frac{W_1}{W_2} 	imes \frac{t_2}{t_1}$.Substituting the given values: $\frac{P_1}{P_2} = \frac{4}{3} 	imes \frac{11}{12} = \frac{44}{36} = \frac{11}{9}$.Therefore,the ratio of power of the first to that of the second is $11/9$.

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

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