The phenomena of gravity, electricity, and magnetism are capable of acting over a distance to produce forces without direct contact between the affected objects. This remarkable behavior is called "action at a distance" and was a matter of considerable philosophical debate in Newton's time. Note however, that these forces are still created by an object, on another object. That means that you must still be able to point to the object that makes the force. It is not correct for example to simply say that "Gravity pulled the ball down." You must note that it is the Earth that pulled the ball down using the gravitational force. When making free body diagrams (FBDs) you must use this fact about the other body to help decide whether to include these forces. For example, if there are no magnets (or electromagnets) in the problem, you must not draw a magnetic force. Similarly, if you want to include weight in a problem, the Earth must be nearby. And whenever the Earth is nearby you must include weight. Here are two common examples where students may go wrong. The apparent weightleness in a falling elevator does not mean that weight is really missing. The Earth is nearby so weight must be included in the FBD. In fact, it is the cause of the downward acceleration. The centrifugul sensation detected by our sense of balance when we travel in a car going around a corner, is not from a force outward. Here you cannot find an object that makes an outward force so none should be drawn. It is our inertia that carries us in a straight line and the car is actually turning away (inward) from underneath us. We appear to run into the side door, but in fact the door has run into us. No force outward, but (ultimately - we hope) a door force inward. The phenomena of gravity, electricity, and magnetism are capable of acting over a distance to produce forces without direct contact between the affected objects. This remarkable behavior is called "action at a distance" and was a matter of considerable philosophical debate in Newton's time. Note however, that these forces are still created by an object, on another object. That means that you must still be able to point to the object that makes the force. It is not correct for example to simply say that "Gravity pulled the ball down." You must note that it is the Earth that pulled the ball down using the gravitational force. When making free body diagrams (FBDs) you must use this fact about the other body to help decide whether to include these forces. For example, if there are no magnets (or electromagnets) in the problem, you must not draw a magnetic force. Similarly, if you want to include weight in a problem, the Earth must be nearby. And whenever the Earth is nearby you must include weight. Here are two common examples where students may go wrong. The apparent weightleness in a falling elevator does not mean that weight is really missing. The Earth is nearby so weight must be included in the FBD. In fact, it is the cause of the downward acceleration. The centrifugul sensation detected by our sense of balance when we travel in a car going around a corner, is not from a force outward. Here you cannot find an object that makes an outward force so none should be drawn. It is our inertia that carries us in a straight line and the car is actually turning away (inward) from underneath us. We appear to run into the side door, but in fact the door has run into us. No force outward, but (ultimately - we hope) a door force inward.
The gravitational force is an example of a force that acts through distance. It is a force of attraction between two objects that is determined by their masses and the distance between them.
An example of a distance force is gravity. Gravity is a force of attraction between objects with mass that acts over a distance, pulling objects towards each other even if they are not in direct contact.
One example of an action-at-a-distance force is gravity. Gravity is a force that acts between two objects without physical contact, pulling them towards each other based on their masses and distance.
Gravity, for instance, holds us down from the gravitational pull of the moon, which is thousands of miles away from Earth.
The force that acts on an object at a distance is called a non-contact force, such as electromagnetic force or gravitational force. These forces can act on objects without them physically touching.
The gravitational force is an example of a force that acts through distance. It is a force of attraction between two objects that is determined by their masses and the distance between them.
An example of a distance force is gravity. Gravity is a force of attraction between objects with mass that acts over a distance, pulling objects towards each other even if they are not in direct contact.
One example of an action-at-a-distance force is gravity. Gravity is a force that acts between two objects without physical contact, pulling them towards each other based on their masses and distance.
Gravity, for instance, holds us down from the gravitational pull of the moon, which is thousands of miles away from Earth.
Torque is calculated by multiplying a force by the distance from the fulcrum at which it acts.
The force that acts on an object at a distance is called a non-contact force, such as electromagnetic force or gravitational force. These forces can act on objects without them physically touching.
input distance- the distance the input force acts through
Gravitational force acts over the longest distance, as it is a universal force that attracts all objects with mass to each other.
Work W. The dot product of Force and Distance through which the force acts is called Work . W=F.d
Input Distance is the distance the input force acts through.
No, magnetic force is a non-contact force that acts at a distance between objects with magnetic properties. It does not require direct contact between the objects to exert a force.
Machines do not increase the distance over which a force acts. Machines simply allow us to apply a force over a longer distance, but the total work done remains the same. The mechanical advantage of a machine may amplify input force, but the distance over which the force acts remains constant.