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Results tagged with newtonian-mechanics
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user 36935
Newtonian mechanics discusses the movement of classical bodies under the influence of forces by applying Newton’s three laws. For more general concepts, use [classical-mechanics]. For Newton’s description of gravity, use [newtonian-gravity].
0
votes
Change of kinetic energy of a rock lifted by a force greater than its weight
What is different about the scenario presented in the problem that doesn’t make D correct?
The rock is gaining, not losing potential energy. The correct formulation in terms of potential energy woul …
- 262
2
votes
Elevator cabin problem
From observer B's perspective the lamp is falling down. It's acceleration is 9.8 m/s. From B's perspective the lamp is not getting closer to the floor of the cabin, because the cabin is also acceler …
- 262
1
vote
The best way in which a man can pull a train
There are two misconseptions that lay at the bottom of your question:
that force is being wasted by being applied to the wrong object (or that there is a wrong object for the force to be applied to) …
- 262