Last Updated On [03-11-2023]
A sphere ball of mass 
moving with initial velocity 
collides elastically with another ball of mass 
which is fixed at one end of 
shaped rigid massless frame as shown in Fig (a). The 
shaped frame contains another mass 
connected at the other end
.png)
|
The speed of the striking mass after collision is |
|||||||
|
a) |
|
b) |
0 |
c) |
|
d) |
|
Question ID - 101406 :- A sphere ball of mass moving with initial velocity collides elastically with another ball of mass which is fixed at one end of shaped rigid massless frame as shown in Fig (a). The shaped frame contains another mass connected at the other end
The speed of the striking mass after collision is
a)
backwards
b)
0
c)
in same direction
d)
backwards
A sphere ball of mass moving with initial velocity collides elastically with another ball of mass which is fixed at one end of shaped rigid massless frame as shown in Fig (a). The shaped frame contains another mass connected at the other end
|
The speed of the striking mass after collision is |
|||||||
|
a) |
|
b) |
0 |
c) |
|
d) |
|
(d)
Applying conservation of momentum
(i)
(ii)
.png)
Applying conservation of angular momentum about 
,
(iii)
Solving Eqs. (i), (ii) and (iii), we get
Angle rotated,
Next Question :
Two discs 
and 
are mounted coaxially on a vertical axle. The discs have moments of inertia 
and 
respectively about the common axis. Disc 
is imparted an initial angular velocity 
using the entire potential energy of a spring compressed by a distance 
. Disc 
is imparted an angular velocity 
by a spring having the same spring constant and compressed by a distance 
. Both the discs rotate in the clockwise direction
|
The loss of kinetic energy during the above process is |
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|
a) |
|
b) |
|
c) |
|
d) |
|
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