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Toss rock straight up in air at 17 m/s (initial speed).

After 14.2, the rock is falling towards him at 8.56 m/s

What is magnitude of the local gravitation acceleration?

Can someone show me how to do this, OR show me the equation for solving this type of problem? thanks

In terms of showing work, I can't even find an equation or an approach that I would be confident handing in as an answer, so I haven't gotten past the "how I approach this" point in the problem.

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# Help with Kinematics Physics problem

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