Little Gayle lifts her 40-kg body a distance of 0.25 meters in 2 seconds, Find the force she exerts, work done, and the power she delivered
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Force exterted by Gayle on the ground
F = mg = 40(9.8) = 392 N
Workdone
W = mgh
W = 392(0.25)
W = 98 J
Power
P = W/t
P = 98/2
P = 49 W
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