Question

A car starts from rest and after 7 seconds it is moving at 42 m/s. What is the car’s average acceleration? A. 0.17 m/s2 B. 1.67 m/s2 C. 6 m/s2 D. 7 m/s2 E. none of the above

Answer 1

Acceleration =velocity /time
=42/7
=6

Answer 2

C. 6 m/s2 is correct