The extension in a spring when 5g wt was hung from it was 0.56cm.if Hooke’s law is obeyed,what is the extension caused by a load of 20g wt

Answer 1

Let the extension caused by a load of 20g weight be x.

According to Hooke's Law, the extension is directly proportional to the force applied. Therefore, we can set up a proportionality relationship:

5g weight causes an extension of 0.56 cm
20g weight causes an extension of x cm

Using the ratio of the weights to the extensions, we have:

5g / 20g = 0.56 cm / x

Simplifying the ratio:

1/4 = 0.56 cm / x

Cross multiplying:

x = 4 * 0.56 cm
x = 2.24 cm

Therefore, the extension caused by a load of 20g weight is 2.24 cm.