Dr. Sheldon Cooper and Penny are on the way to the Comic Book Store to buy a gift for Leonard. Penny is driving her car at a speed of 30.0 m/s along a straight portion of the expressway of Pasadena when she applies the brakes at point A and reduces her speed at a uniform rate until her speed at C becomes 18.00 m/s The curved section B-C is 62.0 m long with a constant radius of curvature of 75.0 m. 80 m B 75 m 62 m D 1. Which of the following statements are TRUE regarding the motion of Penny's car along the curved portion of the path B-C? 1. Its acceleration is tangent to its path. II. Its velocity is tangent to its path. III. Its normal acceleration is directed towards point D.

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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.