A bus driver slams on the brakes to avoid an accident. The tread marks of the tires are 0.075 km long. If the coefficient of kinetic friction uk =0.8, what was the speed of the bus before applying brakes?

In order to do work, the force vector must be in the same direction as the acceleration vector. in a different direction than the displacement vector. in a different direction than the acceleration vector. in the same direction as the displacement vector and the motion.