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Suppose that a NASCAR race car is moving to the right with a constant velocity of +82 m/s. What is the average acceleration of the car? (b) Twelve seconds later, the car is halfway around the track and traveling in the opposite direction with the same speed. What is the average acceleration of the car?

Respuesta :

meerkat18
Since the problem says the velocity is constant, acceleration is equal to the change in velocity per unit time. Since there is no change in velocity, hence the acceleration is zero. Acceleration after substitution is (85- (-85))/12 equal to 14.17 m/s2

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