The position of a particle is given by ?(?) = 4?^2 − 5? + 6 where x is in meters and t in seconds. (a) Determine the average speed in the time interval from t = 1.2 s to t = 3.5 s. (b) to What time is the velocity of the particle 0?

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The position of a particle is given by ?(?) = 4?^2 − 5? + 6 where x is in meters and t in seconds.

(a) Determine the average speed in the time interval from t = 1.2 s to t = 3.5 s.

(b) to What time is the velocity of the particle 0?

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