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A ball is launched upward from the ground with an initial velocity of 19 m/s and reaches height above the ground before falling back down.
A ball is launched upward from the ground with an initial velocity of19 m/s and reaches height above the ground before falling back down. Neglect air resistance. What is an expression for t total in terms of the variable t top, the time of ascent from the ground to the top of the trajectory? What is the velocity of the ball in the instant of time before it hits the ground, vf, in terms of vi, t total, and a?
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