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A 1250 kg car was traveling at 10 m/s toward a traffic signal when the light suddenly turned red. The driver slammed on his brakes, stopping the car in 3.3 seconds. What was the acceleration of the car ?

Respuesta :

Answer:

a = - 3 m/s^2 (negative 3 meters per second squared)

Explanation:

We use the formula for acceleration as the change in velocities (from initial velocity "vi" to final velocity "vf") divided the time "t" it took. In our case:

a = (vf - vi) / t = (0 - 10) / 3.3 = -10 /3.33 = -3 m/s^2