Question: 3) A ball is thrown straight upward with an initial velocity of +7.3 m/s. If the acceleration of the ball is downward, with the

3) A ball is thrown straight upward with an initial velocity of

3) A ball is thrown straight upward with an initial velocity of +7.3 m/s. If the acceleration of the ball is downward, with the value -9.81 m/s, find the velocity of the ball after (a) 0.45 s and (b) 0.90 s. If the positive direction is upwards, draw the direction of acceleration and final velocity for both (a) and (b).

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