Question

A race car has a mass of 710kg. It starts from rest and speeds up to 12m/s in 12.0s. The car is uniformly accelerated during the entire time. What net force is applied to it?

Answer 1

First calcualte the acceleration =V/t=12/12=1m/s2
Second calcualte the net force according to the Newton second law
F=ma=710x1=710N