Evergy of Simple harmonic motion

[Jake4]

Homework Statement

A 0.155 kg mass is attached to a spring and
executes simple harmonic motion with a pe-
riod of 0.63 s. The total energy of the system
is 1.9 J.
Find the force constant of the spring.

Homework Equations

E=1/2(kA^2)

The Attempt at a Solution

We went over in class, how to find the spring constants and such when given the amplitude. However I can't figure out how to work this one out. I think I'm missing a piece. I'm assuming there's a way to find A from the period?

any help would be wonderful, thank you guys!

 

[lepton5]

do you know the relation between $$\omega$$, k and m ?

 

[Jake4]

I do not.. >.<

 

[suwarna07]

Homework Statement

A 0.155 kg mass is attached to a spring and
executes simple harmonic motion with a pe-
riod of 0.63 s. The total energy of the system
is 1.9 J.
Find the force constant of the spring.

Homework Equations

E=1/2(kA^2)

The Attempt at a Solution

We went over in class, how to find the spring constants and such when given the amplitude. However I can't figure out how to work this one out. I think I'm missing a piece. I'm assuming there's a way to find A from the period?

any help would be wonderful, thank you guys!

we know that w = 2 pi / T
w = 9.97

and we also know,

w squared = k/m

hence solving for k you get k = 1.54 N/m