A particle of mass m strikes elastically with a disc of radius R, with a velocity 
as shown in the figure. If the mass of the disc is equal to that of the particle and the surface of the contact is smooth, then the velocity of the disc just after the collision is :
A
B
C
D
v
Text Solution
Verified by ExpertsThe correct answer is:
C
sin θ = 
; θ = 30º
Both have equal mass it means along LOI particle transfer it velocity to disc which is vcos θ .
LOI vcos θ
so V D = Vcos θ = Vcos 30º = 
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