A ball rolls off of a table (take v0 as 0m/s) that is 1.25m tall. How long does it take for the ball to hit the floor?

Question

David Arnold

Physics

28 April, 19:57

A ball rolls off of a table (take v0 as 0m/s) that is 1.25m tall. How long does it take for the ball to hit the floor?

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Answers (1)

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Sheldon Schwartz · Answer 1

Let

h=height of table = 1.25m

g=acceleration due to gravity = 9.8m/s^2

t=time taken=?

Solution

h = (vi) (t) + 1/2 (g) (t^2)

1.25 = (0) (t) + 1/2 (9.8) (t^2)

t^2 = 0.255

t. = 0.5s