Laws Of Motion Question 349

Question: Two particles of equal mass are connected to a rope AB of negligible mass such that one is at end A and other dividing the length of rope in the ratio 1:2 from B. The rope is rotated about end B in a horizontal plane. Ratio of tensions in the smaller part to the other is (ignore effect of gravity)

Options:

A) 4:3 

B) 1:4

C) 1:2

D) 1:3

Show Answer

Answer:

Correct Answer: A

Solution:

[a]T1=mω2(3)

and T2T1=mω2

or T2=T1+mω2=mω2(3)+mω2

=4mω2

T2T1=43



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