illustrate contact forces.,forces at a distance
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Contact forces are frictional force along a surface, normal reaction force from a surface like push, pull etc, Tension in a rod, string, rope. The force acts only when there is a physical contact between surfaces of two bodies. Drag force or buoyancy force on a solid inside a fluid are also contact forces.
Forces at a distance are electromagnetic forces, electrostatic forces, gravitational forces. When two charges are at a distance there exists an attraction or repulsion force between them. Earth revolves around the Sun due to gravitational force.
Forces at a distance are electromagnetic forces, electrostatic forces, gravitational forces. When two charges are at a distance there exists an attraction or repulsion force between them. Earth revolves around the Sun due to gravitational force.
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