How long is the rock in the air from the instant it is

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Reference no: EM13635135

A rock is tossed straight up with a speed of 20m/s when it returns it falls into a hole 10m deep.

What is the rock's velocity as it hits the bottom of the hole ?

How long is the rock in the air from the instant it is released until it hits the bottom of the hole ?

Reference no: EM13635135

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