Class 11th Physics:-
Two blocks of mass m and 2m are connected with a spring of spring
constant K and are kept on horizontal frictionless surface. If we impart a
velocity v to block of mass m towards right. The velocity of centre of
mass is ?
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Answer:
v/3k is the answer
as the 2nd block is also exerting force on it
Mass of block 1,
Mass of block 2,
Velocity of centre of mass,
Therefore,
Therefore, the velocity of centre of mass is .