A 150g ball travelling at 30 m/s strikes the palm of a players hard and is stopped in 0.05s. find the force exerted by the ballon the hard.
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mass=150g=3/20kg
initial velocity=30m/s
final velocity=0m/s
time=0.05s=1/20s
acceleration=0-30/1/20= -600m/s^2
force=mass × acceleration=3/20×600= 90N
{the magnitude of force is always +ve.}
initial velocity=30m/s
final velocity=0m/s
time=0.05s=1/20s
acceleration=0-30/1/20= -600m/s^2
force=mass × acceleration=3/20×600= 90N
{the magnitude of force is always +ve.}
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