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OpenStudy (anonymous):
a ball is moving along a horizontal line starting at t=0 so that its position function at any time t>0 is given by x(t)=(7-4t)(t-2)^3. a. find an expression for the velocity of the ball at any give time b. for what values of t is the ball moving to the right? c. find all values of t for which the acceleration is 0 d. is the ball stationary at any values of t found in part c?
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