A pitcher accelerates a 145g baseball from rest to 28.1 m/s. If this motion takes 0.27 seconds,
what average power was developed?
power = energy /time
energy = final KE - Initial kE
= 1/2 ( 145x 10^-3) ( 28.1^2) - 0= 57. 2467 J
power = 57. 2467 J / 0.27 = 212..025 watts apprx
A pitcher accelerates a 145g baseball from rest to 28.1 m/s. If this motion takes 0.27...
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