A string passes over two fixed pulleys and carries a 2 kg weight at each end. A spring balance is inserted in the horizontal segment of the string. Statement I: If one of the 2 kg weights were replace

Question

A string passes over two fixed pulleys and carries a 2 kg weight at each end. A spring balance is inserted in the horizontal segment of the string.

Statement I:

If one of the 2 kg weights were replaced by a fixed wall hook, the balance reading would stay 2 kg.

Statement II:

A fixed hook provides the same tension as the hanging 2 kg weight did.

TestHub · Accepted Answer

The hook anchors the string with the same force 2 g N, so the tension and the reading are unchanged. Both statements are true. Option A.

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