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  1. A

    Problem A ball of mass m = 8 kg is dropped from rest at a height h = 20.7 m

    above the ground, as in Figure 7.4? (a) If the ball is being released with a downward speed 4.3 m/s initially, what will be its final speed when it hits the table 0.8 m below the release point? b) If the ball is being thrown upwards instead with the same speed 4.3 m/s, what is the final speed...
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