The anount of extension in an elastic spring varies directly with the weight hung on it, If a weight of 250 gm produces an extension of 3.5 cm, find the extension produced by the wight of 700 gm.
Let the extension produced is cm
Weight (gm) | 250 | |
Extension (cm) | 3.5 |
On cross multiplication, we get
Therefore extension produced is 9.8 cm