what is motion?
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Answers
Movement of any object from one position to another position with respect to the observer is called as Motion. Motion Along a Straight Line: When an object moves along a straight line, the motion of the object is called rectilinear motion. For example; motion of a car on highway.
Answer:
Motion:
In physics, the motion is the change in position of an object with respect to its surroundings in a given interval of time. The motion of an object with some mass can be described in terms of the following:
distance
displacement
speed
velocity
time
acceleration
Motion In Physics
Types of Motion in Physics
Motion of an object depends on the type of force acting on the body. Examples of different kinds of motion are given below.
•Translational – It is the type, where an object moves along a path in any of the three dimensions.
Rotational – It is the type, where an object moves along a circular path about a fixed axis.
• Linear – It is a type of translational motion where the body moves in a single direction along a single dimension.
• Periodic – It is the type of motion that repeats itself after certain intervals of time
• Simple Harmonic – It is the type of motion like that of a simple pendulum where a restoring force acts in the direction opposite to the direction of motion of the object. This restoring force is proportional to the displacement of the object from mean position.
• Projectile – It is the type of motion which has a horizontal displacement as well as vertical displacement.
• Oscillatory – It is the type of motion which is repetitive in nature within a time frame. If it is mechanical in nature it is called vibration.
Laws of Motion
Newton’s Laws of Motion laid the foundation for classical mechanics today. Although subject to minor limitations, these laws of motion are valid everywhere and are therefore used. The laws are given as stated below in a brief description
• First Law: Any object will remain in its existing state of motion or rest unless a net external force acts on it.
• Second Law: If an object has a certain mass, greater the mass of this object, greater will the force required be to accelerate the object. It is represented by the equation F = ma, where ‘F’ is the force on the object, ‘m’ is the mass of the object and ‘a’ is the acceleration of the object.
• Third Law: For every action, there is an equal and opposite reaction.
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