APFIVE Average Power of Gravitational Force
A 0.5 kg block slides down a frictionless incline, dropping a vertical height of 2.0 m. If the block’s speed increases from 0 to 6.0 m/s during this process, what is the average power of the gravitational force on the block?
A
P = mg(v₀+v)/2
B
P = (mgh)/t where t = 2h/(v₀+v)
C
P = mgh/(v/g)
D
P = (½mv²)/t where t = h/v
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