Two balls of masses and are moving towards each other with speeds and , respectively. They collide headon and their speeds are and after collision
ColumnI 
Column II 

(A) 
The speed (in m/s) so that both balls move in same direction if coefficient of restitution is 
(p) 

(B) 
The speed (in m/s) so that the maximum fraction of energy is transformed to (assume elastic collision) 
(q) 

(C) 
Coefficient of restitution if stops after collision and m/s 
(r) 
2 

(D) 
If collision is inelastic and the loss of kinetic energy (in after collision may be 
(s) 
4 

CODES : 


A 
B 
C 
D 



a) 
c 
c,d 
a,b,c,d 
a 



b) 
c,d 
c 
a 
a,b,c,d 



c) 
a 
c,d 
c 
a,b,c,d 



d) 
c,d 
a,b,c,d 
c 
a 


Two balls of masses and are moving towards each other with speeds and , respectively. They collide headon and their speeds are and after collision
ColumnI 
Column II 

(A) 
The speed (in m/s) so that both balls move in same direction if coefficient of restitution is 
(p) 

(B) 
The speed (in m/s) so that the maximum fraction of energy is transformed to (assume elastic collision) 
(q) 

(C) 
Coefficient of restitution if stops after collision and m/s 
(r) 
2 

(D) 
If collision is inelastic and the loss of kinetic energy (in after collision may be 
(s) 
4 

CODES : 


A 
B 
C 
D 



a) 
c 
c,d 
a,b,c,d 
a 



b) 
c,d 
c 
a 
a,b,c,d 



c) 
a 
c,d 
c 
a,b,c,d 



d) 
c,d 
a,b,c,d 
c 
a 


(b) i. Solving, we get is always positive For ii. For maximum energy to transfer to Solving, we get iii. For this iv. Depends upon 