A car starts from rest and reaches and reaches a speed of 12 m/s in 20 s. Its acceleration is?

Question

A. 4 m/s2

B. 6 m/s2

C. 0.6 m/s2

D. 240 m/s2

Answer 1

Initial velocity,u=0 m/s

Final velocity,v=12 m/s

Time,t=20s

Acceleration=v-u/t

=12-0/20 m/s2

=12/20 m/s2

=3/5 m/s2

=0.6 m/s2

Therefore the answer is C. 0.6 m/s2

Answer 2

a = (vf -v0) / t

a =(12 - 0 ) / 20

a= 12/20

a = 0.6m/s^2