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A rope of length L is pulled with a constant force F. T is the tension in the rope at a point distance x from the end where the force is applied. Then T is: (a) FL/x (b) FL/(L - x) (c) F (L - x)/L (d) (F - x) / (L - x)


A rope of length L is pulled with a constant force F. T is the tension in the rope at a point distance x from the


end where the force is applied. Then T is:


(a) FL/x (b) FL/(L - x) (c) F (L - x)/L (d) (F - x) / (L - x)


Grade:11

1 Answers

Aman Bansal
592 Points
11 years ago

Dear Jeet,

If the string is equally pulled at each end, the tension will be constant all the way through.

You only get a different effect if you use a heavy string to accelerate an object across a surface for example.

EG: suppose you have a 9kg mass connected to a 1kg rope, and a 10 N force is applied to the free end of the rope.

You are applying a 10 N force to a 10 kg load, so should achieve accelersation of 1 ms-2

The end of the rope that you are pulling will have a tension of 10 N

Down the other end, the rope is accelerating a 9kg mass at 1 ms-2 so clearly the tension there is only 9 N.

Half way along the rope, the Tension will be 9.5 N

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Aman Bansal

Askiitian Expert


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