1.

Conservation of momentum in a collision between particles can be understood from

Answer»

conservation of energy
Newton’s first LAW only
Newton’s second law only
both Newton’s second and third law

Solution :BothNewton.ssecondand thirdlaw
By Netwon.ssecondlawfor systemof particles
If`F_(ext ) = 0`
`0=(d p)/( dt )`
`dp = 0`
p= constant
Momentum of systemwill beconservedif externalforce actingon systemiszero . In CASEOF COLLISION of particleaccordingto Newton.sthird lawof motionequal andoppositeforce willact on individualparticlesHencetotalforceon thesytemwill be ZERO.


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