Question

A car can move from rest to 45 m/s in 9.0 seconds. It's acceleration is _.

A. 5.0 m/s2
B. 11.0 m/s2
C. 4.0 m/s2

Answer 1

divide 45 m with 9 seconds (for the car reached 45 m/s in 9.0 seconds)

45/9 = 5

A. 5.0 m/s² is your answer

hope this helps