Kinematics Question 800

Question: Three identical particles are joined together by a thread .All the three particles are moving in a horizontal plane.If the velocity of the outermost particle is v0, then the ratio of tensions in the three sections of the string is[UPSEAT 2003]

Options:

A) 3 : 5 : 7

B)3 : 4 : 5

C) 7 : 11 : 6

D)3 : 5 : 6

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Answer:

Correct Answer: D

Solution:

Let ω it’s the angular speed of revolution T3=mω23l

T2T3=mω22l

therefore T2=mω25l

T1T2=mω2lT1=mω26l

T3:T2:T1=3:5:6



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