Question

a force of 50 Newton's stretches a spray of a total length of 30 cm and additional force of 10 Newton stretched the spring of 5 cm for the find the natural length of the spring​

Answer 1

So if newtons stretches a spray of the length 30 cm then the ultra stretch from the density gives you the biological sense then you have to find the length, of the spring is 15x15 cause 30 means it’s a cause of sense, so the (Answer is 130)