Two masses 
and 
are connected by an inextensible light string. The string is passing over a light frictionless pulley. The mass 
is resting on a surface and mass 
is hanging in air is as shown in Fig. A particle of mass 
strikes the mass 
from below in case (I) with a velocity 
and in case (II) strikes mass 
with a velocity 
from top and sticks to it
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a)
The conservation of linear momentum can be applied in both the cases just before and just after collision
b)
The conservation of linear momentum can be applied in case I but cannot be applied in case II just before and just after collision
c)
The ratio of velocities of mass 
just after collision in first and second case is 1/2
d)
The ratio of velocities of mass 
just after collision in first and second case is 2
and are connected by an inextensible light string. The string is passing over a light frictionless pulley. The mass is resting on a surface and mass is hanging in air is as shown in Fig. A particle of mass strikes the mass from below in case (I) with a velocity and in case (II) strikes mass with a velocity from top and sticks to ita)
The conservation of linear momentum can be applied in both the cases just before and just after collision
b)
The conservation of linear momentum can be applied in case I but cannot be applied in case II just before and just after collision
c)
The ratio of velocities of mass just after collision in first and second case is 1/2
d)
The ratio of velocities of mass just after collision in first and second case is 2
Question ID - 100606 | SaraNextGen Top Answer Two masses and are connected by an inextensible light string. The string is passing over a light frictionless pulley. The mass is resting on a surface and mass is hanging in air is as shown in Fig. A particle of mass strikes the mass from below in case (I) with a velocity and in case (II) strikes mass with a velocity from top and sticks to it
a)
The conservation of linear momentum can be applied in both the cases just before and just after collision
b)
The conservation of linear momentum can be applied in case I but cannot be applied in case II just before and just after collision
c)
The ratio of velocities of mass just after collision in first and second case is 1/2
d)
The ratio of velocities of mass just after collision in first and second case is 2
Two masses and are connected by an inextensible light string. The string is passing over a light frictionless pulley. The mass is resting on a surface and mass is hanging in air is as shown in Fig. A particle of mass strikes the mass from below in case (I) with a velocity and in case (II) strikes mass with a velocity from top and sticks to it
|
a) |
The conservation of linear momentum can be applied in both the cases just before and just after collision |
|
b) |
The conservation of linear momentum can be applied in case I but cannot be applied in case II just before and just after collision |
|
c) |
The ratio of velocities of mass |
|
d) |
The ratio of velocities of mass |
|
(b,d) In the first case : In the second case:
From Eqs. (i) and (ii),
|
(i)
(ii)
and required ratio