No bouncing, please

Level pending

A uniform cylinder of radius r, rolls over a horizontal plane passing into an inclined plane forming an angle @ with the horizontal. the maximum velocity of the cylinder is v which still permits the cylinder to roll over the inclined plane section without a jump. find---->

v(square )/(7cos@-4)gr/9

where @---->angle

g---> acceleration due to gravity


The answer is 3.

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