Question

A car of mass 1100 kg that is traveling at 27 m/s starts to slow down and comes to a complete stop in 578 m. What is the magnitude of the braking force (in N) acting on the car?

Answer 1

V^2 = Vo^2 + 2a*d
V = 0
Vo = 27 m/s
d = 578 m.
Solve for a. It will be negative.

F = M*a

Answer 2

4521

Answer 3

Do what Henry did, you should get -693.685 N.

Answer 4

21