CBSE - IX - Physics - Force and Laws of Motion
types of force
Forces can be classified as,
Contact forces - for example, friction and Field forces - for example, gravity, electrostatic force
Forces can also be classified as,
Conservative - for example, gravity, electrostatic and Non-conservative - for example, friction.
Fundamentally there are four types of forces,
3/Strong Nuclear force - between proton-proton and neutron-neutron and proton-neutron,
4/Weak Nuclear force - radioactive decay.
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