A boy pushes a rock up a hill in 20 seconds. If he applied a force of 20 N over a distance of 5 m on the rock, calculate the power required in this situation.
80 watts
0.2 watts
2,000 watts
5 watts
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T=20s
F=20N
S=5m
P=?
P=W/T
P=20×5/20
Thus Power is 5W
F=20N
S=5m
P=?
P=W/T
P=20×5/20
Thus Power is 5W
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