An automobile of mass 2000 kg moving at 30 m/s suddenly stopped with a constant braking

Question

force of 10000 N. How far does the car travel before stopping?

Answer 1

F = M*a.
a = F/M = -10,000/2000 = -5m/s^2.

V^2 = Vo^2 + 2a*d.
0 = 30^2 - 10d.
d = ?.