Asked 10 years ago. Active 3 years, 2 months ago. Viewed 91k times. Improve this question. Falko Falko 73 1 1 gold badge 1 1 silver badge 4 4 bronze badges. Add a comment. Active Oldest Votes. If the magnetic field configuration is known and is given by a simple function, you may be able to solve the evolution equation analytically. In that case, just program that solution into your code and have the program calculate the position of the particle at each time.
Improve this answer. David Z David Z This happens when I add the initial velocity to to the change in velocity over the interval. The resultant force is not zero. The submarine above has both vertical forces and horizontal forces acting on it. The horizontal forces will not affect its vertical movement and the vertical forces will not affect its horizontal movement.
The horizontal forces are equal in size and opposite in direction. They are balanced, so the horizontal resultant force is zero. This means that there is no horizontal acceleration. This does not work the other way around -- you cannot apply velocity to an object and change its force.
Velocity does not act on an object. A force pushes or pulls on an object, but velocity is simply something an object has. Every object has velocity at every moment. If the object is not moving, its velocity is zero. According to Newton's first law of motion, without a force acting on an object, its velocity does not change. Unless the object is moving in a vacuum, there are always forces acting on it, and all these forces added together are called the net force.
The net force acts on an object to change its velocity and cause acceleration. Stephanie Mitchell is a professional writer who has authored websites and articles for real estate agents, self-help coaches and casting directors. Mitchell also regularly edits websites, business correspondence, resumes and full-length manuscripts.
The equation for force is written:. Related concepts to force include thrust, which increases the velocity of an object; drag, which decreases the velocity of an object; and torque which produces changes in rotational speed of an object. Forces which do not act uniformly on all parts of a body will also cause mechanical stresses, a technical term for influences which cause deformation of matter. While mechanical stress can remain embedded in a solid object, gradually deforming it, mechanical stress in a fluid determines changes in its pressure and volume.
Dynamics is the study of the forces that cause objects and systems to move. To understand this, we need a working definition of force. Our intuitive definition of force — that is, a push or a pull —is a good place to start. We know that a push or pull has both magnitude and direction therefore, it is a vector quantity and can vary considerably in each regard.
The top left example is that of a pulley system. The force that someone would have to pull down on the cable would have to equal and exceed the force made by the mass the object and the effects of gravity on those object in order for the system to move up.
The top right example shows that any object resting on a surface will still exert force on that surface. The bottom example is that of two magnets being attracted to each other due to magnetic force. Examples of Force : Some situations in which forces are at play.
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