Last Updated On [03-11-2023]
Consider elastic collision of a particle of mass m moving with a velocity u with another particle of the same mass at rest. After the collision the projectile and the stuck particle move in directions making angles 
and 
respectively with the initial direction of motion.
The sum of the angles
a)
b)
c)
d)
Consider elastic collision of a particle of mass m moving with a velocity u with another particle of the same mass at rest. After the collision the projectile and the stuck particle move in directions making angles and respectively with the initial direction of motion.
The sum of the angles
a)
b)
c)
d)
Question ID - 50876 :-
Consider elastic collision of a particle of mass m moving with a velocity u with another particle of the same mass at rest. After the collision the projectile and the stuck particle move in directions making angles and respectively with the initial direction of motion.
The sum of the angles
a)
b)
c)
d)
|
Consider elastic collision of a particle of mass m moving with a velocity u with another particle of the same mass at rest. After the collision the projectile and the stuck particle move in directions making angles The sum of the angles |
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|
a) |
|
b) |
|
c) |
|
d) |
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(b)
Let particle with mass 
, move with velocity u,and 
and 
be velocity after collision. Since , elastic collision is one in which the momentum is conserved , we have
.png)
…..(i)
In perpendicular direction
…..(ii)
Also elastic collision occurs only if there is no conversion of kinetic energy into other from, Hence
….(iii)
Squaring Esq.(i)and (ii)and adding we get
Using Eq.(iii),we get
Hence 
Or 
When two identical particles collide elastically and obliquely,
One being at rest, then they fly off in mutually perpendicular directions.
Next Question :
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If the |
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a) |
Remain unchanged |
b) |
Be doubled |
c) |
Be quadrupled |
d) |
Increase |
of a particle is doubled, then its momentum will
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