Question

A small lead sphere of mass m is hung from a spring of spring constant k. The gravitational potential energy of the system equals zero at the equilibrium position of the spring before the weight is attached. The total mechanical energy of the system when the mass is hanging at rest is:

Answer 1

Answer:

zero

Explanation:

Energy must be conserved

Answer 2

The total energy is equal the sum of kinetic and potential energy .The total mechanical energy of the system when the mass is hanging at rest is zero.

What is law of conservation of energy?

The total energy is equal the sum of kinetic and potential energy.Energy can not be created nor be destroyed can transfer from one form to another form.

Kinetic energy of the body is virtue of motion.The body is at rest hence the kinetic energy of the system is zero and the gravitational potential energy of the system is zero.

Hence the total mechanical energy of the system when the mass is hanging at rest is zero.

To learn more about the law of conservation of energy refer to the link;

https://brainly.com/question/2137260