victor4123 victor4123

03-12-2017
Biology

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A ball hits on a floor from a height of 19.6m.determine the velocity with which the ball strikes the ground.

A ball hits on a floor from a height of 196mdetermine the velocity with which the ball strikes the ground class=

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karenzhou1125 karenzhou1125

03-12-2017

19.6 m/s down
vf^s=vo^2 + 2ad
find vf (final velocity)
vo = 0 m/s (inital velocity, there is none)
a= 9.8 m/s
d= 19.6 m
Vf^2= 2 (9.8) (19.6)
Vf^2 = 384.16
Vf = 19.6 (by square root)
ans = 19.6 m/s

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