In one amusement park ride, riders enter a large vertical barrel and stand against the wall on itshorizontal floor. The barrel is spun up and the floor drops away. Riders feel as if they are pinned to thewall by a force something like the gravitational force. This is an inertial force sensed and used by theriders to explain events in the rotating frame of reference of the barrel. Explain in an inertial frame ofreference (Earth is nearly one) what pins the riders to the wall, and identify all forces acting on them.

We must determine the force operating on the rider in order to secure it to the horizontal wall.

Answered: In one amusement park ride, riders…

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