Theory of Machine
When a point at the end of a link moves with constant angular velocity, its acceleration will have

Radial and tangential components both
Radial component only
Coriolis component only
Tangential component only

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Theory of Machine
Which of the following statements regarding laws governing the friction between dry surfaces are correct?

The friction force is dependent on the materials of the contact surfaces.
The friction force is independent of me area of contact.
All of these
The friction force is directly proportional to the normal force.

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