A sports car has an average acceleration of 13.1 $ \frac{\text { miles }}{\text { hour } \cdot \text { sec }} $ . How long does it take for the car to reach 60.0 mi/h, if it starts from rest?
A) 4.6 s
B) 5.5 s
C) 3.1 s
D) 8.8 s

Question

Quizplus · Accepted Answer

To find the time, use the formula $ t = \frac{\Delta v}{a} $, where $ \Delta v = 60.0 $ mi/h and $ a = 13.1 $ mi/h/s. Thus, $ t = \frac{60.0}{13.1} \approx 4.6 $ seconds.

A Sports Car Has an Average Acceleration of 13 miles hour ⋅ sec \frac{\text { miles }}{\text { hour } \cdot \text { sec }} hour ⋅ sec miles ​

A Sports Car Has an Average Acceleration of 13 $\frac{\text { miles }}{\text { hour } \cdot \text { sec }}$