Question: Please answer question with all work shown. Thanks. Question 8 (3 points) A point moves along a horizontal coordinate line in such a way that

Please answer question with all work shown. Thanks.

Question 8 (3 points) A point moves along a horizontal coordinate line in such a way that its position at time t is specified by: S 10 43 55 3 2 t2 + 25t a) When is the velocity O? b) When is the point moving backwards (that is to the left)? c) When is the acceleration positive

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