you throw an object straight upwards and catch it again, when it comes down to the same initial height, 2s later. a. How high did it rise above its initial height? b. With what initial speed did you throw it?
Concept - When it returns to the same height the vertical displacement will be zero. Use this for vertical motion and equation of kinematics to find the initial speed. Using initial speed find the height reached where final speed will be zero at maximum height.

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you throw an object straight upwards and catch it again, when it comes down to the...
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