A disc of radius R and mass M is rolling horizontally without slipping with speed v . It then moves up an inclined smooth surface as shown in figure. The maximum height that the disc can go up the incline is:

Question

A disc of radius R and mass M is rolling horizontally without slipping with speed v . It then moves up an inclined smooth surface as shown in figure. The maximum height that the disc can go up the incline is:, v 2 g, 3 4 v 2 g, 1 2 v 2 g, 2 3 v 2 g

MARKS App · Accepted Answer

Only the translational kinetic energy of disc changes into gravitational potential energy and rotational KE remains unchanged as there is no friction. 1 2 m v 2 = m g h ⇒ h = v 2 2 g

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