A uniform cylinder of mass M and radius R is to be pulled over a step of height a a R by applying a force F at its centre ' O ' perpendicular to the plane through the axes of the cylinder on the edge of the step (see figure). The minimum value of F required is :

Question

A uniform cylinder of mass M and radius R is to be pulled over a step of height a a R by applying a force F at its centre ' O ' perpendicular to the plane through the axes of the cylinder on the edge of the step (see figure). The minimum value of F required is :, Mg 1 - R - a R 2, Mg R R - a 2 - 1, Mg a R, Mg 1 - a 2 R 2

MARKS App · Accepted Answer

Mg 1 - R - a R 2 F R > M g c o s θ R F > M gcos θ F > M g R 2 - ( R - a ) 2 R . ⇒ Mg 1 - R - a R 2

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