Advertisements
Advertisements
प्रश्न
What do you mean by the state of equilibrium? What are the conditions for stable equilibrium?
Advertisements
उत्तर
A body is said to be in equilibrium under the action of a number of forces, if the forces are not able to produce any change in the state of rest or of uniform motion or uniform rotation.
Conditions for stable equilibrium:
(a) The body should have a broad base.
(b) Centre of gravity of the body should be as low as possible.
(c) Vertical line drawn from the centre of gravity should fall within the base of the support.
APPEARS IN
संबंधित प्रश्न
Define equilibrium.
State the principle of moments. Give one device as an application of it
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?

State the principle of moments. A meter scale is pivoted at 30 cm mark and it is in equilibrium when a mass of 40 g is suspended from 10 cm mark. Calculate the mass of the ruler.

Give scientific reason for the following:
In a moving bus the standing passenger stands keeping both his legs apart.
A faulty balance of equal arms but pans of unequal weight is used to find the weight of a body. By the method of double weighing the weights are found as 8 kg and 8.2 kg. Find the actual weight of the body.
What is the weight of a body placed at the centre of the earth?
How can we increase the stability of an object?
Mention any two conditions for the stability of a body?
Explain the concept which is used in the continuous movement of the Thanjavur doll?
