Final answer:
The 2 correct options are:
A. It refers to applying forward pressure on the handlebar of the turning side.
B. It refers to the manner in which both the rider and the motorcycle lean in the direction in which the motorcyclist intends to turn.
Step-by-step explanation:
The term 'push-steering' or 'counter-steering' refers to the technique used by motorcyclists to initiate a turn, especially at higher speeds.
There are two aspects to this:
- A. It refers to applying forward pressure on the handlebar of the turning side, which involves pushing the handlebar away from the direction of the desired turn.
- B. It refers to the manner in which both the rider and the motorcycle lean in the direction in which the motorcyclist intends to turn. This lean is necessary to balance the forces during the turn.
When a physics student notices that pulling back lightly on the right handlebar causes the motorcycle to tip to the left and produce a left turn, it is due to the gyroscopic effects and the need to create the correct leaning angle.
By pushing on the right handlebar, the rider is initiating a lean to the left, which is counterintuitive but necessary to create the right balance of forces for the turn.
The force on the wheels from the ground must align with the center of gravity for stability, requiring the correct lean angle to supply the necessary centripetal force for the turn.