what is the answer

Question

a car has a mass of 1575 kg it starts from rest and travels to 250 meters in 7.4 seconds and is uniformly accelerated during this time what net force is applied to the car

Answer 1

F = ma 

 

x = at²/2 ⇒

 

a = 2x/t² = 2(250 m) / (7.4 s)² ≅ 9.13 m/s²

 

F = ma = (1575 kg)(9.13 m/s²) ≅ 14380 N