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The acceleration of a bal is directly proportional to .At -0 s, the velocity of the ball is v= 20 İns and x =0 n. Knowing that v=18 n/s when t=1 s. determine a) the expressions for velocity, acceleration and position b) the time when v 0 in/s

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a a t dt 3 3 2 : Acceleration-| a =-G t2 velocityこいニー2t3+20 4 2kindly give rating

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