In a circus show, a motorcycle rider inside a ' deathwell' can revolve on the erect wall without falling down. What is the reason behind it?

In a circus show, a motorcycle rider inside a ' deathwell' can revolve

1.	In a circus show, a motorcycle rider inside a ' deathwell' can revolve on the erect wall without falling down. What is the reason behind it?
Answer» Solution :While revolving on the erect wall inside the well, the rider derives the necessary centripetal force for revolving in a circular PATH from the horizontal component of normal force. Due to the presence of this normal force, an upward FRICTIONAL force is GENERATED which balances the combined weight of the motor-cycle and the cyclist. For this REASON, the rider does not FALL down.