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Results tagged with free-body-diagram
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user 298718
A pictorial device which analyzes forces present on any body with the use of vectors. Allows easier grasping of problems involving either objects at equilibrium or in motion. Can be used to predict presence of forces.
3
votes
Is the force on the bob of a pendulum with respect to ground 0 at the bottom?
No, tension in the string at lowest point can be found from Newton's Second law:
$$\mathbf {F_{net}}=m\mathbf a$$
At lowest point, due to circular motion, we will have radial acceleration $\frac {v^2} …
- 612
0
votes
Can internal forces do work onto object(s) in a system?
Internal forces can most definitely do work on a system too. Just imagine two bodies getting attracted under gravitational force, with no outside forces in play. The kinetic energy of both bodies, and …
- 612
0
votes
Why does rotation happens about hinge point in a bar when net force acting on it are zero?
Why won't rotation happen? That is dependent upon torque, not force. Translational and rotational equilibrium are independent of each other. Moreover, the object is not at translational equilibrium he …
- 612
2
votes
Accepted
Free Body Diagram w.r.t a rotating reference frame
Yes, of course we include the real forces. Real forces would be included in both inertial as well as non-inertial frames. But in non-inertial frames we have to additionally include pseudo forces, such …
- 612