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A girls throws a tennis ball straight into the air with a velocity of 64 feet/sec. If acceleration due to gravity is −32 ft/sec2, how many seconds after it leaves the girl's hand will it take the ball to reach its highest point? Assume the position at time t = 0 is 0 feet.
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two seconds because for each second it is moving, it will lose 32ft/s of velocity. Therefore after two seconds velocity will equal zero, meaning it will have reached its highest point.
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