Which kind of force is friction?
AContact
BMagnetic
CGravitational
DNuclear
Answer & Solution
Correct answer: A. Contact
1. Friction needs two surfaces to be in contact.
2. It opposes relative motion between the surfaces.
3. So friction is a contact force.
_Source: Selina Concise Physics ICSE Class 8, Ch 3 'Force and Pressure'_
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