state and prove the law of conservation of momentum
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when two bodies act upon one another, their total momentum remains provided number external forces are acting.
momentum is neither created nor destroyed.
momentum=mass×velocity
before collision= velocity of A=u1
velocity of B=u2
mass of A=m1
mass of B=m2
After collision= velocity of A= v1
velocity of B= v2
F1=-F2
m1a1=-m2a2
m1(v1-u1)\t = -m2(v2-u2)\toh
m1v1-m1u1=-m2v2+m2u2
m1v1+m2v2=m1u1+m2u2
momentum is neither created nor destroyed.
momentum=mass×velocity
before collision= velocity of A=u1
velocity of B=u2
mass of A=m1
mass of B=m2
After collision= velocity of A= v1
velocity of B= v2
F1=-F2
m1a1=-m2a2
m1(v1-u1)\t = -m2(v2-u2)\toh
m1v1-m1u1=-m2v2+m2u2
m1v1+m2v2=m1u1+m2u2
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