iven: A bowling ball is dropped from the top of a building that has a height of h = 101 m. Assuming air resistance is negligible, what is the ball's speed, vf in m/s, when it strikes the ground?   If drag produces an opposing force of 10 N while the ball's falling, what is the ball's speed, vf in m/s, when it strikes the ground? Assume the ball has a mass of 5 kg.  A different ball was dropped and the final speed was measured to be vf = 6.5 m/s while the drag force was measured to be 50 Newtons. What is the mass of this ball in k

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