A devious classmate swings a sharp pencil at the end of some thread capable of withstanding only 10 N of force. Swinging a 20 g pencil in a horizontal, 50 cm radius circle, at what speed will the thread break and possibly strike down an innocent classmate in the prime of life? Also show the force diagram.

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A: Image-1

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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.