Two particles of masses 
and 
and velocities 
and
make an elastic head on collision. If the initial kinetic energies of the two particles are equal and 
comes to rest after collision, then
a)
b)
c)
d)
Two particles of masses and and velocities and make an elastic head on collision. If the initial kinetic energies of the two particles are equal and comes to rest after collision, then
a)
b)
c)
d)
Question ID - 100779 | SaraNextGen Top Answer
Two particles of masses and and velocities and make an elastic head on collision. If the initial kinetic energies of the two particles are equal and comes to rest after collision, then
a)
b)
c)
d)
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Two particles of masses |
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a) |
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b) |
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c) |
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d) |
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1 Answer
127 votes
Answer Key / Explanation : (a,c) -
(a,c)
Since both masses have equal kinetic energy, so
(i)
By law of conservation of momentum
(ii)
Further by law of conservation of energy we have
(iii)
From Eqs. (ii) and (iii), we get
127 votes
Answer Link
127