Q. Kinetic friction acts when

गतिज घर्षण कब कार्य करता है

A
Object is at rest
वस्तु विश्राम अवस्था में है
B
Object just starts to move
वस्तु बस हिलना शुरू कर देती है
C
Object is in motion
वस्तु गति में है
D
Object is falling
वस्तु गिर रही है

Explanation

Kinetic friction (also called dynamic friction) acts on an object when it is sliding or moving over a surface. It opposes the motion and is generally less than static friction (which acts when the object is at rest but about to move). When the object is stationary, static friction is acting, not kinetic friction.

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First Law of Thermodynamics Rigid Body Dynamics Conservation Principles Electric Current and Ohm's Law Kinematics (One and Two Dimensions)

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