Q.

Two forces are acting on a rope lying on a smooth table as shown in figure.Which of the following statement (s) is/are correct?I. In moving from A to B, tension on string decreases from 2F to F.II. Situation will becomes indeterminant, if we take it a massless string.

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a

Only I

b

Only II

c

Both I and II

d

None of these

answer is C.

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Detailed Solution

As forces at two ends of string are different, so tension on it decreases from 2F to F in moving from A to B.  In case of massless string,  a=2F-F0=∞Hence, both statements are correct.
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