Engineering Mechanics
The velocity ratio in case of an inclined plane inclined at angle 'θ' to the horizontal and weight being pulled up the inclined plane by vertical effort is

cosecθ
tanθ
cosθ
sinθ

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Engineering Mechanics
The term 'Centroid' is

The point of suspension
None of the listed here
The point of application of the resultant of all the forces tending to cause a body to rotate about a certain axis
The same as centre of gravity

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