PLEEASE HELP GRADE 12 PHYSICS UNIVERSITY LEVEL

User Generated

xumnx

Science

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

Thank you for the opportunity to help you with your question!

-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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Anonymous
I was struggling with this subject, and this helped me a ton!

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