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Results tagged with forces
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user 380387
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.
11
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Why does a plastic bag rip when it is raised to a higher position when being held but not wh...
You move the bag upwards with an acceleration. If you were to pull the bag up with infinitesimal acceleration, it would not rip then, because the force required for that would approach zero. But since …
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2
votes
Normal Force and Newton's Third Law
And the gravitational forces between the book and table themselves, usually so small in magnitude that they're considered negligible, are a pair of action reaction forces as well. …
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3
votes
How can we prove that tension on both sides of string will be equal?
The string is massless and inextensible; so if there is a net force on any part of the string it will cause its acceleration.
Since m approaches zero, acceleration for even a small unbalanced force wi …
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0
votes
Formula for Work
This work can be calculated for both the forces respectively, and their sum is the net work done on the object by both the forces. …
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0
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What's the connection between force and energy?
Different forces can have different work done on the particle. … The net work done, i.e. the summation of work done by all forces (by friction and the force $F$ in this case), however, is equal to change in kinetic energy of the particle. …
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