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प्रश्न
State the principle of moments.
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उत्तर
When the number of forces acting on a body, keep it in equilibrium, then the sum total of clockwise moments about any turning point is equal to sum total of anticlockwise moments about the point.
संबंधित प्रश्न
Define 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?
State two conditions for a body acted upon by several forces to be in equilibrium.
What makes a balance faulty?
The moon revolving around the earth is in ______ equilibrium.
State two conditions when the work done by a force acting on a body is zero.
One end of a spring is kept fixed while the other end is stretched by a force as shown in the diagram.
(i) Copy the diagram and mark on it the direction of the restoring force.
(ii) Name one instrument which works on the above principle.
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?
Give an experiment to verify the principle of moments.
Mention any two conditions for the stability of a body?
