The ideal spring and simple harmonic motion

[abvebstr19@co]

Homework Statement

A person who weighs 665 N steps onto a spring scale in the bathroom, and the spring compresses by 0.67 cm.
(a) What is the spring constant?
(b) What is the weight of another person who compresses the spring by 0.37 cm?

Homework Equations

f=-Kx

frequency=(1/2pi)(k/m)^.5
frequency=1/T
where T=period

The Attempt at a Solution

f=kx
665N=K(.67cm)
K=992.53

 

[rock.freak667]

The Attempt at a Solution

f=kx
665N=K(.67cm)
K=992.53 N/cm

Write in your units.

So you basically want to to find F, for a given x and you know k. Just re-use the formula again.

 

[abvebstr19@co]

thanks, i did that but the answer for that part is still wrong and i can't figure out why

 

[rock.freak667]

thanks, i did that but the answer for that part is still wrong and i can't figure out why

What is the given answer?

 

[abvebstr19@co]

there is none. its an online homework so they don't give answers until after its due

 

[LowlyPion]

there is none. its an online homework so they don't give answers until after its due

Likely they want the answer in N/m, not N/cm