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प्रश्न
State one way to obtain greater moment of a given force about a given axis of rotation.
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उत्तर
In order to generate the maximum torque to turn the body, the force is applied at a position on the body where the line of action's perpendicular distance from the axis of rotation is maximum.
संबंधित प्रश्न
A brass ball is hanging from a stiff cotton thread. Draw a neat labeled diagram showing the forces acting on the brass ball and cotton thread
A force is applied on (i) a non-rigid body and (ii) a rigid body. How does the effect of the force differ in the above two cases?
Thrust is the ............ force acting on a surface.
Define force.
State the effect of force F in of the following diagram.

What do you mean by the clockwise and anti-clockwise moment of force?
The moment of a force of 25 N about a point is 2.5 N m. Find the perpendicular distance of force from that point.
Write an expression for the change in momentum of a body of mass m moving with velocity v if v << c.
State the relationship between force, mass and acceleration. Draw graphs showing the relationship between Acceleration and force for a constant mass.
Write the expression for calculating the moment of force about a given axis.
It is easier to turn the steering wheel of a large diameter than that of a small diameter. Given reason.
A uniform metre scale can be balanced at the 70.0 cm mark when a mark when a mass 0.05 kg is hung from the 94.0 cm mark
- draw a diagram of the arrangement
- Find the mass of the metre scale
Classify the following amongst contact and non-contact forces.
magnetic force
Give an example for each of the following uses of a machine:
to change the point of application of force
A meter scale is provided at 10 cm mark and is balanced by suspending 400 g from 0 cm mark (fig.). Calculate the mass of meter scale.

A jack screw is provided with a long arm. Explain why?
How does the distance of separation between two bodies affect the magnitude of the non-contact force between them?
A person standing in front of a cliff fires a gun and hears its echo after 3 s. If the speed of sound in air is 336 ms−1.
- Calculate the distance of the person from the cliff.
- After moving a certain distance from the cliff, he fires the gun again, and this time the echo is heard 1.5 s later than the first. Calculate the distance that the person moved.
