Question

The spring has a scale that reads from zero to 30 kg. The length of the scale is 30cm.

1. Calculate the force constant K

2. If the period of oscillation is 1 sec. Calculate mass of the body attached to the spring.

3. If the spring is cut into two halves, What is the force constant of each half?

Answer 1

1. 30 cm = 30kg

1 cm = 30/30 = 1kg

∴ Spring constant K = 1 kg/cm = 10N/cm =1000N/m.

2.

3. If spring of spring constant K is cut in to half, spring constant of each half became, 2K