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प्रश्न
State the condition when the change in the momentum of a body depends only on the change in its velocity.
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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.
संबंधित प्रश्न
The S.I. unit of force is kgf. (kilogram-force)
How does the effect of force differ when it is applied on a rigid body?
State two factors on which affect moment of force.
Find the moment of force of 20 N about an axis of rotation at distance 0.5 m from the 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 Nm. What minimum force must be applied on its rim?
Name of S.I. unit of momentum.
A body X of mass 5 kg is moving with velocity 20 m s-2 while another body Y of mass 20 kg is moving with velocity 5 m S-1. Compare the momentum of the two bodies.
Calculate the resultant moment of forces about O and state its direction in fig.
Write the expression for the moment of force about a given axis.
