Posted by **RoCu** on Monday, October 15, 2012 at 8:07pm.

A 0.26kg- rock is thrown vertically upward from the top of a cliff that is 32m high. When it hits the ground at the base of the cliff, the rock has a speed of 29m/s.

1)

Assuming that air resistance can be ignored, find the initial speed of the rock

? m/s

2)

Find the greatest height of the rock as measured from the base of the cliff.

? m

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