Does a Compressed Vertical Spring Only Store Elastic Potential Energy?

[bullroar_86]

if a vertical spring is being compressed down, is the Elastic potential energy the only energy?

Ee = .5kx^2

is gravity included in that? or does it not play a role?

and how could I tell how far an object would fly up in the air once the spring is released?


thanks

 

[whozum]

Thats the energy with regards to the spring's compression.
The spring's potential energy will be translated to kinetic energy, how does gravity affect this energy/

 

[bullroar_86]

well i know that the force of gravity will work against the kinetic energy...


I have an elastic potential energy of .2 J, so the kinetic energy will also be .2 J (up) ..

I know the mass of the item, and g, so I know that

Fg = mg


just not sure how to put the two together and get a height out of it.

 

[whozum]

express the gravitation in terms of energy, the .2J would result in a change of gravitational potential energy.

 

[bullroar_86]

express the gravitation in terms of energy, the .2J would result in a change of gravitational potential energy.

ahh ok so,

.2J = mgh

and

h = .2J/mg

 

[bullroar_86]

Thats the energy with regards to the spring's compression.
The spring's potential energy will be translated to kinetic energy, how does gravity affect this energy/

well I'm still a little confused, the equation E = mgh is still a potential energy equation, not the kinetic energy equation (E = .5mv^2)


is the above solution correct? (previous post)

 

[whozum]

well I'm still a little confused, the equation E = mgh is still a potential energy equation, not the kinetic energy equation (E = .5mv^2)


is the above solution correct? (previous post)

What's confusing about it?
The solution looks fine to me.