A man of mass 
stands at one end of a plank of length 
which lies at rest on a frictionless surface. The man walks to the other end of the plank. If the mass of the plank is 
, the distance that the man moves relative to the ground is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Let plank moves 
distance in opposite direction, then displacement of man relative to ground
will be 
.
Applying law of conservation of momentum,
Solving this equation, we get 
Displacement of man relative to ground
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