Description
1. A baseball is thrown by Joey from the third floor of his home at 20.0m/s [downwards], his friend Timmy is 3.5 m below him.
a. Find how long it takes the ball to reach Timmy.
b. What velocity does the ball hit Timmy?
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Explanation & Answer
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-3.5 = -20*t-1/2gt^2
4.9t^2+20t-3.5 =0
t= 0.168s
V = V0-9.8*t = -20-1.65 = -21.65
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