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Engineering Mechanics

Coefficient of friction is the_________________?

Engineering Mechanics /
Coefficient of friction is the_________________?

A. angle between normal reaction and the resultant of normal reaction and the limiting friction
B. ratio of limiting friction and normal reaction
C. the friction force acting when the body is just about to move
D. the friction force acting when the body is in motion
E. tangent of angle of repose

Coefficient of friction is the_________________? Read More »

Engineering Mechanics

A body of weight W on inclined plane of a being pulled up by a horizontal force P will be on the point of motion up the plane when P is equal to________________?

Engineering Mechanics /
A body of weight W on inclined plane of a being pulled up by a horizontal force P will be on the point of motion up the plane when P is equal to________________?

A. W
B. W sin (a + $)
C. Wtan(a + <|))
D. Wan(a-)
E. Wtana

A body of weight W on inclined plane of a being pulled up by a horizontal force P will be on the point of motion up the plane when P is equal to________________? Read More »

Engineering Mechanics

If rain is falling in the opposite direction of the movement of a pedestrain, he has to hold his umbrella___________________?

Engineering Mechanics /
If rain is falling in the opposite direction of the movement of a pedestrain, he has to hold his umbrella___________________?

A. more inclined when moving
B. less inclined when moving
C. more inclined when standing
D. less inclined when standing
E. none of the above

If rain is falling in the opposite direction of the movement of a pedestrain, he has to hold his umbrella___________________? Read More »

Engineering Mechanics

A particle moves along a straight line such that distance (x) traversed in t seconds is given by x = t2 (t – 4), the acceleration of the particle will be given by the equation __________________?

Engineering Mechanics /
A particle moves along a straight line such that distance (x) traversed in t seconds is given by x = t2 (t – 4), the acceleration of the particle will be given by the equation __________________?

A. 3t2-lt
B. 3t2+2t
C. 6f-8
D. 6f-4
E. 6t2-8t

A particle moves along a straight line such that distance (x) traversed in t seconds is given by x = t2 (t – 4), the acceleration of the particle will be given by the equation __________________? Read More »

Engineering Mechanics

The maximum frictional force which comes into play when a body just begins to slide over another surface is called__________________?

Engineering Mechanics /
The maximum frictional force which comes into play when a body just begins to slide over another surface is called__________________?

A. limiting friction
B. sliding friction
C. rolling friction
D. kinematic friction
E. dynamic friction

The maximum frictional force which comes into play when a body just begins to slide over another surface is called__________________? Read More »

Engineering Mechanics