Answer:
Rolling Friction (round object on a flat surface) Speeding up.
Step-by-step explanation:
Gravity continually pulls something such as a table, roster, or person down from the hill. Thus, when you bounce, gravity makes you to arrive on the territory. Friction, however, doesn't pull something down. Friction, however, doesn't pull something downstairs. ... Also, friction always operates identically to the surface in connection because of the sliding movement.