Students should be able to explain that there is a lot of friction because of the rough surface, but a heavier/bigger car creates a larger force between the car and the rough surface, increasing the amount of friction.
(Students; should be; able to explain that there is a lot of friction because of the rough surface) (a heavier/bigger car; creates; a larger force between the car and the rough surface) (Students; to explain; that there is a lot of friction because of the rough surface)
Students a heavier/bigger car Students
should be creates to explain
able to explain that there is a lot of friction because of the rough surface
a larger force between the car and the rough surface
that there is a lot of friction because of the rough surface