The average power required to lift a 100 kg | vedclass

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Question

(D) The formula for average power $P$ is given by $P = \frac{W}{t}$,where $W$ is the work done and $t$ is the time taken.Work done $W$ to lift a mass

Vedclass · Accepted Answer

$980$

Vedclass · Answer

(D) The formula for average power $P$ is given by $P = \frac{W}{t}$,where $W$ is the work done and $t$ is the time taken.Work done $W$ to lift a mass $m$ to a height $h$ is $W = mgh$.Given: $m = 100 \ kg$,$h = 50 \ m$,$t = 50 \ s$,and acceleration due to gravity $g = 9.8 \ m/s^2$.Substituting the values: $P = \frac{100 	imes 9.8 	imes 50}{50}$.$P = 100 	imes 9.8 = 980 \ J/s$.Therefore,the correct option is $D$.

The average power required to lift a $100 \ kg$ mass through a height of $50 \ m$ in approximately $50 \ s$ would be ............. $J/s$.

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