A sphere with mass m = 18 g at the end of a massless string is swinging in a circle of radius R = 1.31 m with and angular velocity ω = 3 rad/s. Write an expression for the velocity v of the sphere. In order to travel in a circle, the direction the spheres path must be constantly changing, curvung inward. This constant change in direction twoards the center of the circle is a center pointing acceleration called centripal accleration ac . Write an expression for the centripla accleration ac of the sphere in terms of linear velocity. Solve both expressions

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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.