Asked by joyce
A softball having a mass of 0.25 kg is pitched at 95 km/h. By the time it reaches the plate it may have slowed 10%. neglecting gravity, estimate the average force of air resistance during a pitch. if the distance between the plate and the pitcher is about 15 m.
Answers
Answered by
bobpursley
force*distance=loss of energy
= 1/2 m (vi^2 -vf^2)
vf=vi*.9
solve for force
= 1/2 m (vi^2 -vf^2)
vf=vi*.9
solve for force
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