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A ball is thrown upwards with an initial velocity of 30 m/s. a) What is the velocity at the high point? b) What is the

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A ball is thrown upwards with an initial velocity of 30 m/s. a) What is the velocity at the high point? b) What is the acceleration at the high point? c) How long until the ball reaches the high point? d) What is the velocity at t=4s? e) At t=4s, is the ball moving up or down

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