Question
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?
How fast was it rolling on the desk before it fell off?
Answers
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
t = sqrt (2H/g) = 0.515 s
Vx = 0.74 m/0.515s = ___
Vx does not change as the ball falls to the floor
1.44