In a free space, a rifle of mass M shoots a bullet of mass m at a stationary block of mass M distance D away from it. When the bullet has moved through a distance d towards the block, the centre of mass of the bullet-block system is at a distance of -
A
from the block
B
from rifle
C
from bullet
D
None of these
Text Solution
Verified by ExpertsThe correct answer is:
C
If x is distance moved by rifle when bullet has traveled through a distance d, then –
Mx = md ⇒ x = 
So, distance of bullet from block D – d and distance between block and rifle = D + x
Distance of C.M from block in
r 1 = 
= 
Distance of C.M from rifle
= 
Also distance of C.M from bullet
= 
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