Question

A 1250 kg car starts from rest and speeds up to 14.0 m/s in 7.25s. How much force acted on the car ?

Answer 1

m = 1250 kg
V = 14.0 m/s
t = 7.25 s
F = ?

Impulse equation
F . t = m . V

:. F = mv/t

F = (1250 kg x 14.0 m/s) / 7.25s

F = 2414 N