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. 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. straight line
B. parabola
C. hyperbola
D. elliptical
E. part of a circle
A. coplanar
B. meet at one point ;
C. both A. and B. above
D. all be equal
E. something else
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. remain horizontal
B. slant up towards direction of pull
C. slant down towards direction of pull
D. unpredictable
E. none of the above
A. kinetic friction
B. limiting friction
C. angle of repose
D. coefficient of friction
E. friction force
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. same
B. more
C. less
D. may be less of more depending on nature of surfaces and velocity
E. has no correlation
A. one point
B. one plane
C. different planes
D. perpendicular planes
E. different points