All Questions
5
questions
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votes
1
answer
329
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Is friction equal to gravitational force during rolling down a ramp?
I'm studying the motion and forces involved in a ball (bidimensional) rolling down a ramp inclined by an angle $\theta$ from the x-axis.
This is the body diagram (I didn't draw forces but there is ...
- 3
0
votes
1
answer
239
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how does a car move? and how do the brakes affect its velocity? [duplicate]
im doing a project that requires me to understand how cars move. from what I understand , its the friction that is creates in the tires that enables the tire to rotate, which then push the car forward....
- 3
6
votes
4
answers
4k
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Why do office chairs rotate when pushed/pulled out?
A common source of frustration when I'm at work is the fact that my rolling office chair's wheels rotate whenever I push it forward or backward from my desk, which can cause it to bump my computer ...
- 162
0
votes
1
answer
59
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The path of a disk/cylinder with translation and rotation [closed]
The conditions:
We have a regular disc of mass $\mathrm{M}$ and radius $\mathrm{R}$. It is placed on a horizontal plane with friction (which is constant throughout). It is then given an initial ...
- 151
7
votes
1
answer
3k
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Does a tire need to slip to generate force?
Recently, I have been doing some research on racing and tire modelling. While I was doing this, I encountered many curves like those shown below.
(source: insideracingtechnology.com)
While I ...
- 427