In a vertical plane inside a smooth hollow thin tube a block of same mass as that of tube is released as shown in figure. When it is slightly disturbed it moves towards right. By the time the block reaches the right end of the tube, displacement of the tube will be (where ‘R’ is mean radius of tube). Assume that the tube remains in vertical plane.
A
B
C
D
R
Text Solution
Verified by ExpertsThe correct answer is:
C
Since there is no ext. force on system
m (R – x) + m (–x) = 0
x = R/2.
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