Two spheres and
move on a smooth horizontal surface with same velocity
and have some separation between them. A third sphere
is moving in opposite direction on the same surface with the same speed. All the spheres are of equal mass. The collisions are elastic.
represents the centre of mass velocityof all the three spheres. Column II represents the values after all the possible impacts have occurred
Column-I |
Column- II |
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(A) |
If |
(p) |
|
||||||
(B) |
If |
(q) |
|
||||||
(C) |
If |
(r) |
Momentum of system |
||||||
(D) |
If |
(s) |
Momentum of system |
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CODES : |
|||||||||
|
A |
B |
C |
D |
|
|
|||
a) |
a,b,c |
a,b,c |
a,b |
a,b |
|
|
|||
b) |
a,b,c |
a,b |
a,b,c |
a |
|
|
|||
c) |
a,b |
a,b,c |
a,b |
a,b, |
|
|
|||
d) |
b |
a,b |
b,c |
a,b,c |
|
|
Two spheres and
move on a smooth horizontal surface with same velocity
and have some separation between them. A third sphere
is moving in opposite direction on the same surface with the same speed. All the spheres are of equal mass. The collisions are elastic.
represents the centre of mass velocityof all the three spheres. Column II represents the values after all the possible impacts have occurred
Column-I |
Column- II |
||||||||
(A) |
If |
(p) |
|
||||||
(B) |
If |
(q) |
|
||||||
(C) |
If |
(r) |
Momentum of system |
||||||
(D) |
If |
(s) |
Momentum of system |
||||||
CODES : |
|||||||||
|
A |
B |
C |
D |
|
|
|||
a) |
a,b,c |
a,b,c |
a,b |
a,b |
|
|
|||
b) |
a,b,c |
a,b |
a,b,c |
a |
|
|
|||
c) |
a,b |
a,b,c |
a,b |
a,b, |
|
|
|||
d) |
b |
a,b |
b,c |
a,b,c |
|
|
(a)
If and
are connected, then they will act as a mass of
. If
and
are connected by an ideal string, then finally
and
will be rest