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Two particles, each of mass m, collide head-on when their speeds are 2u and u. If they stick together on impact, find their combined speed in terms of u.
  • a)
    2u
  • b)
    u/2
  • c)
    u/4
  • d)
    u
Correct answer is option ''. Can you explain this answer?
Verified Answer
Two particles, each of mass m, collide head-on when their speeds are ...
Conservation of linear momentum:
m1u1 + m2u2 = (m1 + m2) V
m(2u) + m(-u) = (2m) V
mu = 2mV
V = u/2
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Two particles, each of mass m, collide head-on when their speeds are 2u and u. If they stick together on impact, find their combined speed in terms of u.a)2ub)u/2c)u/4d)uCorrect answer is option ''. Can you explain this answer?
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