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

cosθ
cosecθ
tanθ
sinθ

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Engineering Mechanics
The static friction

Always acts in a direction, opposite to that in which the body tends to move
All of these
Is independent of the area of contact, between the two surfaces
Bears a constant ratio to the normal reaction between the two surfaces

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