explain the law of conservation of linear momentum......
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⠀⠀⠀⠀⠀⠀⠀Conservation of Momentum
➫ A system in which the momentum of a system is constant if there are no external forces acting on the system.
VERIFICATION
Let the Body A = m1 & B = m2
Let their velocity be u1 & u2
Momentum of Body
A = m1u1 & B = m2u2
Initial & Final momentum of System
Body A exert force of Action
◉ Body B exert force of Reaction
▸ Fᴀʙ = Body A
▸ Fʙᴀ = Body B
▸ Since, Action = - reaction
▸ So, Fᴀʙ = - Fʙᴀ