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Results tagged with forces
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user 193484
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.
3
votes
When the Center of Mass and Center of gravity does Not Coincide
Center of Gravity is a quite similar concept but very special to gravitational forces acting on a body. … Now, Center of Mass is the averaging of the position of masses while Center of Gravity is the averaging the position of Gravitational Forces acting on masses. …
- 625
1
vote
Work done when lifting an object at constant speed
But if you imagine lifting up a rock from the ground at a constant speed, am I not doing work on the rock by converting the chemical energy stored in my muscles into the potential energy of the rock? …
- 625