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Results tagged with forces
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user 268590
This tag is for the classical concept of forces, i.e. the quantities causing an acceleration of a body. It expands to the strong/electroweak force only insofar as they act comparable to ‘classical’ forces. Use the [particle-physics] tag for decay channels due to forces and [newtonian-mechanics] or one of the other subtopics of [classical-mechanics] for the dynamics of classical systems.
1
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Evaluating the net force that the southern hemisphere of a uniformly charged sphere exerts o...
Find the net force that the southern hemisphere of a uniformly charged sphere exerts on the northern hemisphere.
I am perfectly aware that this question has been asked many times (here), but I am su …
- 362
5
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Accepted
Evaluating the net force that the southern hemisphere of a uniformly charged sphere exerts o...
So finally I understand my mistake as pointed out by @Triatticus that I have assumed the northern hemisphere as a point charge, and that is not correct. It requires to calculate the force using integr …
- 362
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Instantaneous power delivered in a string
When the supports of a string are moving, why is the instantaneous power delivered by the string $0$?
So we say that at all moving contacts of the string, $$\sum \vec{T_i}\cdot \vec{v_i}=0$$ where $T$ …
- 362
6
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Calculating the direction of friction on an inclined plane/Determining the fate of a round b...
Question:
If a round object (say ring or a sphere) is kept on a rough inclined plane of inclination $\theta$ and coefficient of friction $\mu$ is such that it exactly balances the component of weight …
- 362