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प्रश्न
A body is acted upon by two forces of magnitude F but in opposite directions. State the effect of the force if both forces act at the same point of the body.
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उत्तर
Resultant force acting on the body = F - F = 0
moment of forces = 0 i.e no motion of the body
संबंधित प्रश्न
A half metre rod is pivoted at the centre with two weights of 20gf and 12gf suspended at a perpendicular distance of 6 cm and 10 cm from the pivot respectively as shown below.
1) Which of the two forces acting on the rigid rod causes clockwise moment?
2) Is the rod in equilibrium?
3) The direction of 20 kgf force is reversed. What is the magnitude of the resultant moment of the forces on the rod?
Moment of force = force × perpendicular distance of force – from the pivoted point.
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- A,
- B and
- O situated exactly at the middle of the two forces.
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What moment of force depresses the rule?
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to change the point of application of force
A couple of 15 N force acts on a rigid body, such that arm of couple is 85 cm. Calculate moment of couple in the SI system.
