Asked by mssailormouth

The acceleration due to the Earth's gravity, in English units, is 32 ft/s2. In the absence of air friction, a ball is dropped from rest. Its speed on striking the ground is exactly 60 miles/hr. For what time interval was the ball falling?

I am unsure how to set this up to solve :(
Answered by henry2,
V = 60mi/hr * 5280Ft/mi * 1hr/3600s = 88 Ft/s.

V = Vo + g*t,
88 = 0 + 32*t,
t = ?
Answered by mssailormouth
t=2.75
Answered by henry2,
t = 2.75 s. is correct.
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