Last Updated On [03-11-2023]
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 :-
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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(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
Next Question :
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A thin circular ring of mass |
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a) |
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b) |
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c) |
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d) |
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and radius 
is rotating about its axis with a constant angular velocity
. Two objects, each of mass
, are attached gently to the opposite ends of the diameter of the ring. The wheel now rotates with an angular velocity
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