Question

What force is required to stop a 1100 kg car in 8.0 sec. If it is travelling at 25 m/s?

Answer 1

Here check it out  below

Answer 2

Given:
Car's mass = 1100 kg
Speed = 25 m/s
Time = 8 sec

Force = Mass x acceleration
Acceleration = final velocity - initial velocity/t
$1100 \times \frac{25}{8}$
3437.5 N