Advertisements
Advertisements
प्रश्न
Define the term momentum.
Advertisements
उत्तर
The momentum of a body is the product of the mass of the body and its velocity, i.e. p = mv.
APPEARS IN
संबंधित प्रश्न
Define equilibrium.
State the condition when a body is in static equilibrium.
The figure shows a uniform metre rule placed on a fulcrum at its mid-point O and having a weight 40 gf at the 10 cm mark and a weight of 20 gf at the 90 cm mark.
- Is the metre rule in equilibrium? If not how will the rule turn?
- How can the rule be brought in equilibrium by using an additional weight of 40 gf?

A meter scale is pivoted at its mid point and a 50 g mass suspended from the 20 cm mark. What mass balances the ruler when suspended from 65 cm mark?
Explain when we carry weight, on one hand, we bend on the other side.
A ball is placed on a compressed spring. When the spring is released, the ball is observed to fly away.
(i) What form of energy does the compressed spring possess?
(ii) Why does the ball fly away?
Give an experiment to verify the principle of moments.
How can we increase the stability of an object?
Explain the types of stability with suitable examples.
When a stone tied to a string is rotated in a horizontal plane, the tension in the string provides ______ force necessary for circular motion.
