Yuri,a Russian weightlifter,is able to lift 260 kg 2.10 m in 2.20 s.What is his power output?

Question

Quizplus · Accepted Answer

Power output (P) = work done (W) / time taken (t)
The work done by Yuri is given by W = mgh, where m is the mass lifted, g is the acceleration due to gravity, and h is the distance lifted.
m = 260 kg, g = 9.8 m/s^2, h = 2.10 m
W = (260 kg)(9.8 m/s^2)(2.10 m) = 5364 J
t = 2.20 s
P = W/t = 5364 J/2.20 s = 2438 W = 2.43 kW

Yuri,a Russian Weightlifter,is Able to Lift 260 Kg 2