A car has a mass of 820 kg. It starts from rest and travels 41 m in 3.0 s. What is the force applied to the car?

Respuesta :

Assuming constant acceleration, 
s = 1/2 at^2, so 

1/2 * a * 3^2 = 41 
a = 9.111 

And, we all know that F = ma