In order for an object to be in constant uniform motion ... that is, un-accelerated,
with constant speed and direction of motion ... the vector sum of all forces acting
on it must be zero.
If an object is not accelerating, it can exist in two other states of motion: constant velocity motion (moving with a steady speed in a straight line) or at rest (not moving at all).
In order to do work, two conditions that need to exist are a force must be applied on an object and the object must move in the direction of the applied force. If either of these conditions is not met, work is not being done on the object.
The energy caused by an object's vibration is known as mechanical energy. It can exist in the form of potential energy (stored energy) when the object is stationary, and kinetic energy (energy of motion) when the object is vibrating.
Balanced forces can exist with or without kinetic energy. Balanced forces occur when the forces acting on an object are equal in magnitude and opposite in direction, resulting in no change in the object's motion. Kinetic energy, on the other hand, is the energy an object possesses due to its motion. So, an object experiencing balanced forces may or may not have kinetic energy depending on its state of motion.
To set an object into motion, a force must be applied to overcome any resistance or inertia that may exist. In the case of waves moving a paper boat, the force of the water displacement propels the boat forward. The amount of force needed depends on the mass of the object and the resistance it encounters in its environment.
a hot one
If an object is not accelerating, it can exist in two other states of motion: constant velocity motion (moving with a steady speed in a straight line) or at rest (not moving at all).
Resistance to the motion of an object is friction. Several different kinds of friction exist, including dry, fluid, lubricated, skin, and internal.
In order to do work, two conditions that need to exist are a force must be applied on an object and the object must move in the direction of the applied force. If either of these conditions is not met, work is not being done on the object.
There is no such thing as "absolute motion" - neither in outer space, nor anywhere else. Motion must always be specified in relationship to some other object.
The energy caused by an object's vibration is known as mechanical energy. It can exist in the form of potential energy (stored energy) when the object is stationary, and kinetic energy (energy of motion) when the object is vibrating.
Balanced forces can exist with or without kinetic energy. Balanced forces occur when the forces acting on an object are equal in magnitude and opposite in direction, resulting in no change in the object's motion. Kinetic energy, on the other hand, is the energy an object possesses due to its motion. So, an object experiencing balanced forces may or may not have kinetic energy depending on its state of motion.
To set an object into motion, a force must be applied to overcome any resistance or inertia that may exist. In the case of waves moving a paper boat, the force of the water displacement propels the boat forward. The amount of force needed depends on the mass of the object and the resistance it encounters in its environment.
The force must couple to the object. The point of application of the force must be able to move in the direction of the force.
Linear motion is motion in a straight line, such as a dragster heading down the track, or a person walking down the sidewalk. Circular motion is motion in a circle, such as a yo-yo swung around someones head, or a car making a turn. In physics, while these two categories of motion exist, in most cases outside textbook examples, an objects motion will include both types of motion at once.
For every action, there is an equal and opposite reaction according to Newton's third law of motion. This principle explains why forces exist in pairs - when one object exerts a force on another object, the second object exerts an equal force in the opposite direction.
The following Newton's law deal with motion. 1. Every body continues in its state of rest or of uniform motion in a straight line path until and unless and external force is applied.It is also called as law of inertia. 2. The rate of change of momentum is directly proportional to the force applied and the change takes place in the direction of applied force. 3. For every action there is an equal and opposite reaction. Forces exist in pairs.