Question

1. The weight needed to stretch a spring by 4 cm

when hung vertically is 65 g.
a) What is the force constant of the spring?
b) How much work will gravity do on the spring?
c) If the spring were set into oscillation, what would the frequency of oscillation be? (Neglect the force of gravity.)
Question One.
2. An object weighing 2.5 kg is dropped from a height of 3 m onto a spring. The maximum compression of the spring is 2 cm. What is the force constant of the spring?

Answer 1

conver gram into centimeter and substaract them.