Question

A 1400-kg automobile is driven down a 4° incline at a speed of 88 km/h when the brakes are applied, causing a total braking force of 7500 N to be applied to the automobile. Determine the distance traveled by the automobile before it comes to a stop.

Answer 1

0 - v^2 = 2 a s where
v= initial velocity,
a = acceleration = force/mass = (gravity component - 7500 N)/mass
s = distance before v=0.