Asked by rolando
an autographed baseball rolls off of a .70m high desk and strikes the floor .25m away from the base of the desk. How fast was it rolling?
Answers
Answered by
Steve
Find out how long it takes to fall .7m
.7 = 4.9t^2
Now, with that t, and knowing that the horizontal velocity is constant,
.25 = vt
v = .25/t = .25/√(.7/4.9)
.7 = 4.9t^2
Now, with that t, and knowing that the horizontal velocity is constant,
.25 = vt
v = .25/t = .25/√(.7/4.9)
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