A 615 kg racing car completes one lap in 14.3 s around a circular track with a radius of 50.0 m. The car moves at constant speed. (a) What is the speed of the car? (b) What force must the track exert on the tires to produce this acceleration? (c) If the turn were larger, explain what happens to the force that is needed?

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A: Vf=1.9m/s R=0.4m M=2.4kg ∆t=0.3sec

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A: Draw the free-body diagram of the rock at the top point.

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A: It is given that

Q: initial position E W.

A: The solution can be given as follows :-

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Q: A. How fast is she traveling at that instant in time?

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A: Here, the weight of the car provides the centripetal force.

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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.