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A drag racer starts from rest and acclerates to a velocity of 30 m/s in 1 s. What is the acceleration of the racer?

Respuesta :

Acceleration is the rate of the change in velocity per time of an object in motion. At constant velocity, acceleration is zero. It is calculated by the expression:

a = (vf - vi) / t

From the problem,

vi = 0 (at rest)
vf = 30 m/s 
t = 1 s

a = 30 - 0 / 1
a = 30 m/s^2 <-----------ACCELERATION

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