The ideal spring and simple harmonic motion

AI Thread Summary
The discussion revolves around calculating the spring constant and the weight of another person using a spring scale. The spring constant was initially calculated as 992.53 N/cm, but it was noted that the answer should be expressed in N/m instead. Participants emphasized the importance of using the correct units in calculations. Additionally, there was confusion regarding the accuracy of the answers due to the online homework format, which does not provide immediate feedback. Correct unit conversion is crucial for solving the problem accurately.
abvebstr19@co
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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
 
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abvebstr19@co said:

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.
 
thanks, i did that but the answer for that part is still wrong and i can't figure out why
 
abvebstr19@co said:
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?
 
there is none. its an online homework so they don't give answers until after its due
 
abvebstr19@co said:
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
 

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