JEE Main Physics question
Two particles of masses m₁ and m₂ in projectile motion have velocities v₁ and v₂ respectively at time t=0. They collide at time t₀. Their velocities become v₁' and v₂' at time 2t₀ while still moving in the air. The value of |(m₁v₁'+m₂v₂')−(m₁v₁+m₂v₂)| is [IIT JEE Screening 2001]
Answer: (C)
Solution
The collision between the two particles is an internal interaction and does not change the total momentum of the two-particle system; only the constant external force of gravity, (m₁+m₂)g, acts on the
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