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A 10kg ball falls from a height of 100m. calculate the vertical speed of the ball during the first 4 seconds. calculate the height of

A 10kg ball falls from a height of 100m. calculate the vertical speed of the ball during the first 4 seconds. calculate the height of the ball above the ground during the first 4 seconds. calculate the kinetic and potential energies of the ball. determine the total mechanical energy of the ball? Is gravity a conservative force?

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