- #1
patelneel1994
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Homework Statement
A stone is thrown from the top of a building with an initial velocity of 20 m/s downward. The top of the building is 60 m above the ground. How much time elapses between the instant of release and the instant of impact with the ground?
Vi = -20 m/s height = 60 m
t = ?
Homework Equations
d = Vi.t + 1/2 a t2
The Attempt at a Solution
Couldn't figure out. How to use height as a distance?