A. the center of heavy portion
B. the bottom surface
C. the mid point of its axis
D. all of the above
E. none of the above
A. balance each other
B. constitute a moment
C. constitute a couple
D. constitute a moment of couple
E. constitute a resultant couple
A. kinetic friction
B. limiting friction
C. angle of repose
D. coefficient of friction
E. friction force
A. mechanical advantage is greater than velocity ratio
B. mechanical advantage is equal to velocity ratio
C. mechanical advantage is less than velocity ratio
D. mechanical advantage is unity
E. none of the above
A. remain horizontal
B. slant up towards direction of pull
C. slant down towards direction of pull
D. unpredictable
E. none of the above
A. area of contact
B. shape of surfaces
C. strength of surfaces
D. nature of surface
E. all of the above
A. friction
B. limiting friction
C. repose
D. kinematic friction
E. static friction