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Question

A rod of length L and mass M is acted on by two unequal forces F1 and F2(<F1) as shown in the figure. The tension in the rod at a distance y from the end A is given by:


A

F1[1yL]+F2[yL]

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B

F2[1yL]+F1[yL]

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C

(F1F2)yL

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D

None of these

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Solution

The correct option is A

F1[1yL]+F2[yL]


Net force on the rod =F1F2
Acceleration of rod =F1F2M
Rod of length ‘L’ has mass = M
Rod of length ‘y’ has mass =MLy
F1T=MLy.aF1T=MLyF1F2MT=F1[1yL]+F2yL


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