Column-I
Column- II
(A)
.png)
(p)
Rotational work done by the friction is negative till pure rolling begins
(B)
.png)
(q)
Translational work done is positive till pure rolling starts
(C)
.png)
(r)
When pure rolling begins velocity of centre of mass is minimum
(D)
.png)
(s)
Takes maximum time for pure rolling to begin
CODES :
A
B
C
D
a)
A,b,d
a,b
a,b,c
a,b
b)
b,a
a,b,c
d,a
b
c)
c
c
a,b,c
a,b,c
d)
c,d
b,a
c,d
a
Column-I
Column- II
(A)
(p)
Rotational work done by the friction is negative till pure rolling begins
(B)
(q)
Translational work done is positive till pure rolling starts
(C)
(r)
When pure rolling begins velocity of centre of mass is minimum
(D)
(s)
Takes maximum time for pure rolling to begin
CODES :
A
B
C
D
a)
A,b,d
a,b
a,b,c
a,b
b)
b,a
a,b,c
d,a
b
c)
c
c
a,b,c
a,b,c
d)
c,d
b,a
c,d
a
Question ID - 101015 | SaraNextGen Top Answer
Column-I
Column- II
(A)
(p)
Rotational work done by the friction is negative till pure rolling begins
(B)
(q)
Translational work done is positive till pure rolling starts
(C)
(r)
When pure rolling begins velocity of centre of mass is minimum
(D)
(s)
Takes maximum time for pure rolling to begin
CODES :
A
B
C
D
a)
A,b,d
a,b
a,b,c
a,b
b)
b,a
a,b,c
d,a
b
c)
c
c
a,b,c
a,b,c
d)
c,d
b,a
c,d
a
|
Column-I |
Column- II |
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|
(A) |
|
(p) |
Rotational work done by the friction is negative till pure rolling begins |
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|
(B) |
|
(q) |
Translational work done is positive till pure rolling starts |
||||||
|
(C) |
|
(r) |
When pure rolling begins velocity of centre of mass is minimum |
||||||
|
(D) |
|
(s) |
Takes maximum time for pure rolling to begin |
||||||
|
CODES : |
|||||||||
|
|
A |
B |
C |
D |
|
|
|||
|
a) |
A,b,d |
a,b |
a,b,c |
a,b |
|
|
|||
|
b) |
b,a |
a,b,c |
d,a |
b |
|
|
|||
|
c) |
c |
c |
a,b,c |
a,b,c |
|
|
|||
|
d) |
c,d |
b,a |
c,d |
a |
|
|
|||
(a)
In each case, the friction force will act in the forward direction.This frictionwill increase translational velocity and decrease angular velocity
Apply conservation of angular momentum about the lowest point,
.png)
is minimum for the solid sphere. So 
is minimum for the solid sphere
Similarly,
will be maximum for the ring. From 
,time taken by the ring will be maximum, because acceleration is the same for all