Asked by Anonymous

a ball rolls off a table 1.36 m tall. It lands 3 m from the base of the table. What is the horizontal velocity of the ball when it left the table?

Answers

Answered by oobleck
how long does it take to fall 1.36m?
4.9t^2 = 1.3
so the horizontal velocity v can be found via
1.3v = 3
Answered by Anonymous
(1/2) g t^2 = 1.36
4.9 t^2 = 1.36
t^2 = 0.27755
t = 0.527 second
u t = 3 meters
so
u = 3 / 0.527 = 5.69 m/s
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