Motion and type of motion(गती आणि गतीचे प्रकार)

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Intro of Motion and type of motion(गती आणि गतीचे प्रकार)

➤In physics, motion is the phenomenon in which an object changes its position over time. Motion is mathematically described in terms of displacement, distance, velocity, acceleration, speed, and time.

Types of motion

translational motion

➤motion in which all points of a moving body move uniformly in the same line or direction

Rotational motion

➤ Purely rotational motion occurs if every particle in the body moves in a circle about a single line. This line is called the axis of rotation. Then the radius vectors from the axis to all particles undergo the same angular displacement at the same time. The axis of rotation need not go through the body.

Oscilatary motion

➤ Oscillatory motion is defined as the to and fro motion of an object from its mean position. The ideal condition is that the object can be in oscillatory motion forever in the absence of friction but in the real world, this is not possible and the object has to settle into equilibrium
Distance:
➤ difference between start point and end point
Displacement
➤ It is the shortest distance between start and end point.

Speed
➤ Speed is a scalar quantity that refers to "how fast an object is moving." Speed can be thought of as the rate at which an object covers distance
➤ A fast-moving object has a high speed and covers a relatively large distance in a short amount of time. ... An object with no movement at all has a zero speed.
➤speed=distance/time
velocity
➤ he velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time.Velocity is a physical vector quantity; both magnitude and direction are needed to define it.
➤ velocity=displacement/time

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Uniform motion

➤ A body is said to be in uniform motion if it travels equal distances in equal intervals of time, no matter how small these time intervals may be. If we draw distance time graph for uniform motion then it will be straight line."

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Non-uniform motion

➤A body is said to be in a non-uniform motion if it travels unequal distances in equal intervals of time. ... Therefore, we can say that the motion of a freely falling body is an example of a non-uniform motion. The distance-time graph of the non-uniform motion is a curved line

Acceleration

➤Acceleration (a) is the change in velocity (?v) over the change in time (?t), represented by the equation a = ?v/?t. This allows you to measure how fast velocity changes in meters per second squared (m/s^2). Acceleration is also a vector quantity, so it includes both magnitude and direction.
➤acceleration=change in velocity / time.
➤ a=v-u/t
➤ a=acceleration,u=initial velocity,v=final velocity,t=time

Equation of motion

➤a=acceleration,u=initial velocity,v=final velocity,t=time,s=displacement

• v=u+at
• s=ut+1/2at^2
• v^2=u^2+2as

Scalar and Vector

Scalars
➤ Scalars are quantities that are fully described by a magnitude (or numerical value) alone.
Vectors
➤ Vectors are quantities that are fully described by both a magnitude and a direction.

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