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प्रश्न
What do you mean by the state of equilibrium? What are the conditions for stable equilibrium?
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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.
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संबंधित प्रश्न
State the condition when a body is in dynamic equilibrium.
A uniform meter scale is in equilibrium as shown in the diagram :
(i) Calculate the weight of the meter scale.
(ii) Which of the following options is correct to keep the ruler in equilibrium when 40 gf wt is shifted to 0 cm mark ?
F is shifted towards 0 cm
or
F is shifted towards 100 cm
State two conditions for a body acted upon by several forces to be in equilibrium.
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:
When a man climbs a slope he bends forward.
Give scientific reason for the following:
In a moving bus the standing passenger stands keeping both his legs apart.
Give an experiment to verify the principle of moments.
What are the three types of stability of an object?
Give one example of static equilibrium.
