Question

10. A car starts from rest at a stop light and reaches 20 m/s in 3.5

s. Determine the acceleration of the car.
a) 2.2m/s2
b) 7.0m/s2
c) 5.7m/s2
d) 70m/s2

Answer 1

b i believe not really sure but that math i did seems about right

Answer 2

C
Acceleration= Final velocity-initial velocity
——————————————
Time

A=20 m/s
———- = 5.7 m/s2
3.5 s