A small car with mass 1810 [kg] travels at constant speed on the inside of a track that is a vertical circle with radius 9.00 [m] (see figure on the right). Thenormal force exerted by the track on the car when it is at the top of the track (point ?) is 7.56 X 103 [N] A.  What is the normal force on the car when it is at the bottom of the track (point A)? B. What is the speed v of the car at point B?

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Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.