|
Match the following: |
|||||||||
|
Column-I |
Column- II |
||||||||
|
(A) |
Inelastic collisions |
(p) |
Kinetic energy of the system may decrease |
||||||
|
(B) |
Elastic collisions |
(q) |
Kinetic energy of the system may increase |
||||||
|
(C) |
Total work done is zero |
(r) |
Kinetic energy of the system may remains constant |
||||||
|
(D) |
Non-conservative forces are not present |
(s) |
Just before and after collision, momentum remains constant |
||||||
|
CODES : |
|||||||||
|
|
A |
B |
C |
D |
|
|
|||
|
a) |
c |
a,d |
b,d |
a,d |
|
|
|||
|
b) |
c,d |
c |
a,d |
a,b,c |
|
|
|||
|
c) |
c |
a,d |
c,d |
a,b,c |
|
|
|||
|
d) |
a,d |
c,d |
c |
a,b,c |
|
|
|||
|
Match the following: |
|||||||||
|
Column-I |
Column- II |
||||||||
|
(A) |
Inelastic collisions |
(p) |
Kinetic energy of the system may decrease |
||||||
|
(B) |
Elastic collisions |
(q) |
Kinetic energy of the system may increase |
||||||
|
(C) |
Total work done is zero |
(r) |
Kinetic energy of the system may remains constant |
||||||
|
(D) |
Non-conservative forces are not present |
(s) |
Just before and after collision, momentum remains constant |
||||||
|
CODES : |
|||||||||
|
|
A |
B |
C |
D |
|
|
|||
|
a) |
c |
a,d |
b,d |
a,d |
|
|
|||
|
b) |
c,d |
c |
a,d |
a,b,c |
|
|
|||
|
c) |
c |
a,d |
c,d |
a,b,c |
|
|
|||
|
d) |
a,d |
c,d |
c |
a,b,c |
|
|
|||
(d)
In inelastic collision, kinetic energy is always lost. In elastic collision, kinetic energy remains constant
If total work done is zero, then kinetic energy will remain constant. If non – conservative forces are not present, then kinetic energy may decrease, increase or remain constant, depending upon other forces