Tagged Questions
0
votes
0answers
103 views
Calculating effective spring constant of trampoline [closed]
A gymnast bouncing a trampoline is performing vertical oscillations. If he bounces very gently, his feet remain in contact with the trampoline at all times. This motion is approximately a simple ...
2
votes
1answer
77 views
How do I account for the direction of friction acting on a spring?
I would like to set up the equations of motion for a simple spring oscillator.
Let's have a spring lying horizontally; we attach a small mass $m$ to the (massless) spring.
The force of the spring ...
0
votes
0answers
182 views
The Gravity Spring [closed]
This problem examines the scenario of a tunnel drilled through the center of the Earth, and the length of time required for an object to fall through the hole and back again.
use trigonometry to ...
2
votes
2answers
204 views
Why do joined massless springs, act like a rope under tension?
In an oscillations exercise there is a spring attached to another spring, attached to a block.
Long story short: I have to find the global $k$.
In the solutions it says:
"Because the springs are ...
0
votes
0answers
72 views
Springs yet again, this time with a picture. Infinite displacement, makes no sense [duplicate]
Possible Duplicate:
How could this damped oscillator ever go to infinity? Or negative infinity for that matter?
Consider this
!
Where I purposely drew the right arrow bigger than the left ...
1
vote
2answers
263 views
How could this damped oscillator ever go to infinity? Or negative infinity for that matter?
This is an ODE problem,but I cannot visualize why it can go to infinity or negative infinity.
Consider
$$x'' -6x' + 8x = 0$$
Where $x''$ is acceleration, $-6x'$ is the ...
