A. kinetic friction
B. limiting friction
C. angle of repose
D. coefficient of friction
E. friction force
A. same
B. half
C. one-third
D. two-third
E. one-fourth
A. unit stress
B. bulk modulus
C. modulus of rigidity
D. modulus of elasticity
E. principal stress
A. area of contact
B. shape of surfaces
C. strength of surfaces
D. nature of surface
E. all of the above
A. nature of surfaces
B. area of contact
C. shape of the surfaces
D. ail of the above.
E. A. and B. above
A. equal to the moment of the couple
B. constant
C. both of above are correct
D. both of above are wrong
E. none of the above
A. maximum when it acts at the center of gravity of a body
B. different at different points in its line of action
C. the same at every point in its line of action
D. minimum when it acts at the C.G. of the body
E. none of the above