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Results tagged with homework-and-exercises
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user 43536
Applies to questions of primarily educational value - not only questions that arise from actual homework assignments, but any question where it is preferable to guide the asker to the answer rather than giving it away outright. Please READ THE GUIDANCE IN META before asking homework-like questions.
0
votes
Vertical Circular Motion
Consider at any instant t, the forces acting on the body. Towards the centre, two forces act: Tension ($\vec{T}$) and radial component of weight($\vec{w}$),i.e, $|\vec{w}|\,cos\theta \,\mathbf{r}$ whe …
- 385
1
vote
1
answer
4k
views
Torque for a door
The question is:
A door is hinged at one end and is free to rotate about a vertical axis. Does its weight cause any torque about this axis? Give reason for your answer.
I think that the answer w …
- 385
2
votes
1
answer
655
views
Calculating coefficient of friction
Consider a body attached to a horizontal spring and resting on a surface, inclined at an angle $\theta$ from the ground.
The spring constant is $k$. Initially the spring was kept in its natura …
- 385