Engineering Mechanics
In order to completely specify angular displacement by a vector, it must fix

Sense of angular displacement
Direction of the axis of rotation
Magnitude of angular displacement
All of these

ANSWER DOWNLOAD EXAMIANS APP

Engineering Mechanics
Angle of friction is the

The ratio of minimum friction force to the friction force acting when the body is just about to move
Angle between normal reaction and the resultant of normal reaction and the limiting friction
The ratio of minimum friction force to friction force acting when the body is in motion
Ratio of limiting friction and normal reaction

ANSWER DOWNLOAD EXAMIANS APP