Advertisements
Advertisements
प्रश्न
State the condition when the change in the momentum of a body depends only on the change in its velocity.
Advertisements
उत्तर
If the mass of the body m remains constant then the change in momentum of the body depends only on the change in its velocity.
APPEARS IN
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 wheel of diameter 2 m can be rotated about an axis passing through its center by a moment of force equal to 2.0 Nm. What minimum force must be applied on its rim?
State one way to obtain greater moment of a given force about a given axis of rotation.
State one factor on which the magnitude of a non-contact force depends. How does it depend on the factor stated by you?.
Is moment of force a scalar or a vector?
It is easier to turn the steering wheel of a large diameter than that of a small diameter. Given reason.
Give an example for each of the following uses of a machine:
to change the point of application of force
What is the work done when no net force is applied on the body?
State two factors on which moment of the force about a point depends.
The diagram shows wheel O pivoted at point A. Three equal forces F1, F2 and F3 act at point B on the wheel.

- Which force will produce maximum moment about A?
- Give a reason for your answer in (a).
