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प्रश्न
What do you mean by static equilibrium? Give one example.
What is static equilibrium? Give an example.
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उत्तर
When a body remains in the state of rest under the influence of applied forces, it is said to be in static equilibrium.
Example: In a beam balance, when the beam is balanced in the horizontal position, the clockwise and anti-clockwise moments balance each other and the beam has no rotational motion.
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संबंधित प्रश्न
State the condition when a body is in static equilibrium.
State two condition 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.
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.
Explain why It is easier to knock down a boy who is standing on one foot than one who is standing on two.
A boy of mass 30 kg is fitting at a distance of 2 m from the middle of a see-saw. Where should a boy of mass 40 kg sit so as to balance the see-saw?
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?
Explain the types of stability with suitable examples.
Mention any two conditions for the stability of a body?
