Initially, a warehouse worker pushes a 55 [N] box on a flat, rough, horizontal surface just enough so that the box moves with a constant velocity of 4.2 [m/s]. However, he gets tired and suddenly stops pushing the box. With the coefficient of kinetic friction between the box and the surface equal to 0.45, how long does it take for the box to stop? A. 0.95 [s] B. 2.1 [s] C. 4.4 [s] D. 9.3 [s

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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.