1.

A cylinder of mass m rolls down an inclined plane from a height h above a horizontal level. If the velocity of the axis of the cylinder is v when it reaches the lower level, then

A. v = gh
B. v = mgh
C. \(v = \sqrt {\left( {2gh} \right)}\)
D. \(v < \sqrt {\left( {2gh} \right)}\)
Answer» E.


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