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.
संबंधित प्रश्न
State the effect of force F in of the following diagram.
State the S.I. unit of moment of force.
The diagram shows two forces F1 = 5 N and F2 = 3N acting at point A and B of a rod pivoted at a point O, such that OA = 2m and OB = 4m
Calculate:
- Moment of force F1 about O
- Moment of force F2 about O
- Total moment of the two forces about O.
A uniform metre rule of weight 10gf is pivoted at its 0 mark.
What moment of force depresses the rule?
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 when the moment of force is positive and when it is negative.
Clockwise moment produced by a force about a fulcrum is considered to be ______.
A metal rod AB of length 80 cm is balanced at 45 cm from the end A with 100 gf weights suspended from the two ends.
- If this rod is cut at the center, C, then compare the weight of AC to the weight of BC. (Use >, < or =)
- Give a reason for your answer in (a).
