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
Messages
3
Reaction score
0

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
 
Physics news on Phys.org
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
 
Thread 'Voltmeter readings for this circuit with switches'

Thread 'Voltmeter readings for this circuit with switches'

TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance) My thoughts for the first case , one of them must be 12 volt while the other is 0 The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
View full post »
Thread 'Struggling to make relation between elastic force and height'

Thread 'Struggling to make relation between elastic force and height'

Hello guys this is what I tried so far. I used the UTS to calculate the force it needs when the rope tears. My idea was to make a relationship/ function that would give me the force depending on height. Yeah i couldnt find a way to solve it. I also thought about how I could use hooks law (how it was given to me in my script) with the thought of instead of having two part of a rope id have one singular rope from the middle to the top where I could find the difference in height. But the...
View full post »

Similar threads

Position and acceleration in simple harmonic motion given velocity
Replies
16
Views
1K
Initial velocity of bird landing on horizontal wire modeled as spring
Replies
7
Views
1K
Rotating simple harmonic oscillator
Replies
11
Views
2K
Simple Harmonic Motion of a Spring?
Replies
11
Views
2K
Finding the time period of this System
Replies
14
Views
2K
Bungee jump | simple harmonic motion
Replies
5
Views
2K
What Is the Spring Constant in This Simple Harmonic Motion Problem?
Replies
2
Views
7K
Comparing SHM of Two Identical Masses on Springs
Replies
2
Views
1K
Spring constant of object in simple harmonic motion
Replies
4
Views
4K
When Do Sand Particles Slip Off a Vibrating Plate?
Replies
13
Views
1K

Hot Threads

Recent Insights

Back
Top