- #1
Prabs3257
- 65
- 4
- Homework Statement
- An 8 kg mass hangs from a spring and and stretches it by 16 cm beyond its natural lenght find k of the spring
- Relevant Equations
- F=kx
Its a very basic problem and my friend suggested a solution that we should equate mg and kx ie mg=kx and just plug in m=8 and x=0.16 but i think that we should equate the energies like mgx=1/2kx^2 ie because at the point where mg will be equal to kx the mass will still have a velocity hence it will not be the final extension am i correct??