Question

A uniform metre rule balances horizontally on a knife edge placed at the 58 cm mark when a weight of 20 gf is suspended from one end. (i) Draw a diagram of the arrangement. (ii) What is the weight of the rule ?​

Answer 1

Answer:

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Answer 2

Answer:

ii) As we know, the principle of moments states that

Anticlockwise moment = Clockwise moment.

W \times (58-50)

⇒W= 8

20×42

⇒W=105gf