A. balance each other
B. cannot balance each other
C. produce moment of a couple
D. are equivalent
E. none of the above
A. tangent of angle between normal reac-tion and the resultant of normal reac-tion 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. dynamic friction
A. thermal stresses
B. tensile stress
C. bending
D. compressive stress
E. no stress
A. 3t2-lt
B. 3t2+2t
C. 6f-8
D. 6f-4
E. 6t2-8t
A. longitudinal stress and longitudinal strain
B. longitudinal stress and lateral stress
C. lateral stress and longitudinal stress
D. lateral stress and lateral strain
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. plasticity
B. elasticity
C. ductility
D. malleability
E. resilience