Homework Help: Physics

Posted by KC on Wednesday, October 20, 2010 at 7:53pm.

A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 21.0 m/s. The cliff is h = 60.0 m above a flat horizontal beach.

A)How long after being released does the stone strike the beach below the cliff?

B)With what speed and angle of impact does the stone land?

Physics - bobpursley, Wednesday, October 20, 2010 at 7:56pm
how long does it take to fall 60m?
h=1/2 g t^2

vf=g t

then, for the speed, combine horizontal speed with the vertical speed as vectors.

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