Category: Engineering Mechanics

A. bodies having relative motion
B. two dry surfaces
C. two lubricated surfaces
D. solids and liquids
E. electrically charged particles

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

A. tangent of angle between normal-reaction and the resultant of normal reaction and 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. minimum force of friction

A. magnitude
B. direction
C. point of application
D. all of the above
E. none of the above

A. reducing the problem of kinetics to equivalent statics problem
B. determining stresses in the truss
C. stability of floating bodies
D. designing safe structures
E. solving kinematic problems

A. j-2
B. 2j-l
C. 2/-3
D. 3/-2
E. 2/ -4

A. one-fourth of the total height above base
B. one-third of the total height above base
C. one-half of the total height above base
D. three-eighth of the total height above the base
E. none of the above

A. balance each other
B. cannot balance each other
C. produce moment of a couple
D. are equivalent
E. none of the above

A. L/2
B. L/3
C. 3L/4
D. 2L/3
E. 3L/8

A. compression or tension
B. buckling or shear
C. shear or tension
D. all of the above
E. bending