Question

the amount of extension in an elastic string varies directly with the weight hung to it a weight of 150 produce an extension of 2.9 cm what weight would produce an extension of 17.4 cm ?​

Answer 1

Step-by-step explanation:

Let us consider the weight produce be ‘x’ gm. Extension (cm) 2.9 17.4 Weight (gm) 150 x 2.9/150 = 17.4/x By cross-multiplying 2.9x = 150(17.4) 2.9x = 2610 x = 2610/2.9 = 900 ∴ 900 gm of weight is produced for an extension of 17.4 cm.Read more on Sarthaks.com - https://www.sarthaks.com/666373/the-amount-of-extension-in-an-elastic-string-varies-directly-as-the-weight-hung-on-it