Advertisements
Advertisements
प्रश्न
Give an example of the following uses of a machine:
to change the direction of force
उत्तर
A pulley is used to change the direction of application of force.
APPEARS IN
संबंधित प्रश्न
In a door, handle is provided ......... from the hinges.
State the S.I. unit of moment of force.
A wheel of diameter 2 m can be rotated about an axis passing through its center by a moment of force equal to 2·0 N m. What minimum force must be applied on its rim?
Name of S.I. unit of the rate of change in momentum.
State Newton's third law of motion.
Write the expression for calculating the moment of force about a given an axis.
It is easier to turn the steering wheel of a large diameter than that of a small diameter. Given reason.
Three forces A, B and C are acting on a rigid body which can turn about O in fig.9. If all the three forces are applied simultaneously, in which direction will the body move? Explain.
State two factors on which moment of the force about a point depends.
