Question: A particle moves with position function St4-413-8t + 15t, t0 (a) At what time does the particle have a velocity of 15 m/s? (Enter

A particle moves with position function St4-413-8t + 15t, t0 (a) At what time does the particle have a velocity of 15 m/s? (Enter your answers as a comma-separated list.) t = S (b) At what time is the acceleration 0? (Round your answer to two decimal places.) t = S

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