A sports car of mass 1311.8 kg can accelerate from rest to 21.22 m/s in 3.5 s. What is the average forward force on the car?

Answer 1

a=(Vf-Vo)/t = (21.32-0)/3.5 = 6.06m/s^2

F = ma = 1311.8 * 6.06 = 7953.3 N.