You are not on earth. You have a ball on a string. You whirl it in a vertical circle (similar to the one seen in the 4th example of the Centripetal Force video). (a) Choose values for the following. None of them can be 0. The value of gravitational acceleration on this planet (on Earth it would be 9.81m/s2) The mass of the ball  iii. The length of the string The tension in the string at the top of the circle. (b) Draw the Free Body Diagram of the ball at the top of the circle. (c) Label the origin and axes. (d) Calculate the velocity of the ball at the top of the circle. (e) Draw the Free Body Diagram of the ball at the bottom of the circle. (f) Label the origin and axes. (g) If you maintain the same velocity at the bottom as in the top, what is the tension at the bottom? FYI: m: 5 kg; r: 1.5 m; T1: 25 N

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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.