Asked by Mason
A weight lifter lifts a 200 kg barbell from the floor to a position directly over his head 2.5 meters. How much work did he do?
Answers
Answered by
Damon
Work = force * distance
here force = mass times acceleration of gravity
distance is height difference, h
m g h
200 * 9.81 * 2.5
Joules if m in kg, g in meters/s^2 and h in meters
here force = mass times acceleration of gravity
distance is height difference, h
m g h
200 * 9.81 * 2.5
Joules if m in kg, g in meters/s^2 and h in meters
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