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QUESTION
A rock is tossed straight up with the velocity of 10m/s. when it returns, it falls into a hole 20m deep. what is the rock's velocity as it hits the
A rock is tossed straight up with the velocity of 10m/s. when it returns, it falls into a hole 20m deep. what is the rock's velocity as it hits the bottom of the hole?
Show me clearly pls I need to understand. thank u
