radial component only

tangential component only

coriolis component only

radial and tangential components both

enhance the load carrying capacity of the jack

reduce the effort needed for lifting the working load

reduce the value of frictional torque required to be countered for lifting the load

prevent the rotation of load being lifted

have a surface contact when in motion

have a line or point contact when in motion

are kept in contact by the action of external forces, when in motion

are not held together mechanically

one-half

two-third

n times

1/n times

whole of the mechanism in the Ackerman steering gear is on the back of the front wheels

the Ackerman steering gear consists of turning pairs

the Ackerman steering gear is most economical

whole of the mechanism in the Ackerman steering gear is on the back of the front wheels and the Ackerman steering gear consists of turning pairs