Posted by **Jill** on Thursday, October 2, 2008 at 11:47pm.

A ball is tossed at 10m/s off the top of a 100m tall building. Find its velocity halfway down the building and at the ground.

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**bobpursley**, Thursday, October 2, 2008 at 11:52pm
which direction was it tossed? upward, downward, horizontally?

-50=0+vi*t -1/2 g t^2

solve for time, t.

then knowing time, solve for velocity.

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