A car accelerates at 2 meters per second per second. Assuming the car starts from rest, how much time does it need to accelerate to a speed of 30 m/s?
A) 2 seconds
B) 15 seconds
C) 60 seconds
D) 30 seconds
E) none of these

Question

Quizplus · Accepted Answer

The formula to calculate time when acceleration and final velocity are known is $t = \frac{v}{a}$, where $v$ is the final velocity (30 m/s) and $a$ is the acceleration (2 m/s^2). Plugging in the values, $t = \frac{30}{2} = 15$ seconds.

A Car Accelerates at 2 Meters Per Second Per Second