Asked by john

An autographed baseball rolls off of a 1.3 m high desk and strikes the floor 0.74 m away from the desk. The acceleration of gravity is 9.81 m/s2 .
How fast was it rolling on the desk before it fell off?

Answers

Answered by drwls
Calculate the time it takes to fall H = 1.3 m.

t = sqrt (2H/g) = 0.515 s

Vx = 0.74 m/0.515s = ___

Vx does not change as the ball falls to the floor
Answered by norma
1.44
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