John swing the bat (mass of .5 kg) at 20 m/s (velocity) It hits the ground for .1 seconds (time), what force did the baseball bat exert on the ground.
Force = m ( v - u ) / t
V = 0
U = 20 m/s
m = 0.5 kg
t = 0.1 sec.
Force = 0.5 ( 0 - 20 ) / 0.1 kg m s^-2
Force = -100 Newton
Answer = -100 Newton
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