Why do we feel uneasy when ferry wheels moves downwards?
When the wheel is moving in an upward direction, the pseudo force acts downwards. Due to this reason, the net normal reaction on us increases. Also, when we are moving downwards with the wheel, the normal reaction of the wheel on us decreases proportionally as that time, the pseudo force starts to act upwards. This is the force due to which we feel uneasy. Due to this reason, we feel that we are getting lighter and we are about to fly or fall off the wheel. Similar case is with the motion of lift. When lift is accelerated upward or downward, we feel the same type of effect on us. The reason is pseudo force. But there is a difference between the cases. When lift is moving with constant velocity, we don’t experience any force. But when the wheel moves with constant velocity, we still have force onto us which is centripetal force.