The block at point A is released from rest on a smooth track, which is one quadrant of a circle of radius 5m. It continues to move along a rough surface from point B to E and acquires a velocity of 8.6 m/s at point C. If its velocity at E is 2.25 m/s, calculate: a) velocity at B b) the coefficient of friction between the block and the surface B to E c) mass of the block, if the loss in KE between points D to C is 24.05 J

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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.