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Question

Three identical particles are joined together by a thread as shown in figure. 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


A

3 : 5 : 7

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B

3 : 4 : 5

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C

7 : 11 : 6

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D

3 : 5 : 6

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Solution

The correct option is D

3 : 5 : 6


Let ω is the angular speed of revolution

T3=mω23l
T2T3=mω22lT2=mω25l
T1T2=mω2lT1=mω26l
T3:T2:T1=3:5:6


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