Questions
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:
detailed solution
Correct option is B
Assume no slipping about PTorque of F about P> torque of gravity⇒FR>Mgx⇒FR>MgRsinθ⇒Fmin=Mgsinθ=MgxR=MgR2−R−a2Rfrom figure opp=Hyp2−adj2=MgR2−R−a2R2=Mg1−R−aR2Talk to our academic expert!
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