Impulse

[marshall4]

a 1500kg car slows from 45km/h[E] to 30km/h[E]. What is the impulse from the brakes?

[nautica]

This should probably be posted in the homework help section.

Nautica

[ShawnD]

45km/h = 12.5m/s
30km/h = 8.3333m/s

I = mdv
I = (1500) x (8.333 - 12.5)
I = -6250kgm/s