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प्रश्न
How does the magnitude of this non-contact force on the two bodies depend on the distance of separation between them?
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उत्तर
The magnitude of non-contact forces acting on two bodies depends on the distance of separation between them. The magnitude of force decreases with an increase in separation and increases as the separation decreases. It varies inversely as the square of the distance of separation.
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?
Write the expression for the moment of force about a given axis of rotation.
What are non-contact forces? Give two example
The moment of a force of 10 N about a fixed point O is 5 N m. Calculate the distance of the point O from the line of action of the force.
Classify the following amongst contact and non-contact forces.
Frictional force
Classify the following amongst contact and non-contact forces.
magnetic force
Define the moment of force.
Write the expression for calculating the moment of force about a given point.
A uniform metre scale is balanced at a 40 cm mark when weights of 20 gf and 5 gf are suspended at 5 cm mark and 75 cm mark respectively. Calculate the weight of metre scale.
