Balancing a Stationary Two-Wheeler
A stationary object experiences only gravity, pulling it downward.
The object can be balanced if the line from its center of gravity (where the weight acts) points directly down to a spot within the base (the area where the object touches the ground).
If the base area is wide, even small disturbances (like wind) won't tip the object over because the line of gravity stays within the base.
A two-wheeler has a narrow base — just the small area where the two wheels touch the ground — so even slight disturbances can cause the line of gravity to fall outside the base, making it harder to balance.
Balancing a Moving Two-Wheeler
When the two-wheeler is moving, there’s an additional force from the engine, pushing the vehicle forward.
The combination of the gravitational force pulling down and the forward force from the engine creates a new direction of movement.
As a result, the vehicle continues to move forward even if the line of gravity shifts, making it easier to balance because the motion helps keep it upright.
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