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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. | |