Final answer:
To counteract the centrifugal force while turning, a motorcycle rider must lean into the turn, aligning the center of gravity with the force of the ground, which creates a balanced system of forces.
Step-by-step explanation:
When cornering or turning at speeds faster than 20 km/h, centrifugal force pushes a motorcycle outward. To compensate for this centrifugal force, a rider must lean towards the center of the turn. This leaning action creates a centripetal force, which counteracts the outward push of the centrifugal force, maintaining balance and control. The angle at which a rider leans into a turn depends on the speed of the motorcycle and the radius of the turn, following the principles of physics for stable motion along a curved path.
For example, if a rider is turning left, they must lean to the left. This lean shifts the motorcycle's center of gravity, ensuring that the force exerted by the ground is aligned with the center of gravity. This balanced force system prevents the motorcycle from skidding or tipping over. People often experience this leaning instinctively when riding bicycles or motorcycles, especially during high-speed turns.