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Accelerated Motion (Uniform & Non-Uniform) & Acceleration and Its Types (In Hindi)
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Through this lesson we'll cover some important portion of kinematics and dynamics in short and also we'll discuss a lot questions related to each topic.

## Kumar Ketan is teaching live on Unacademy Plus

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3. CRAs4 Physics course for IIT JEE Kinematics & Dynamics 1D Non-Accelerated Motion 1D Accelerated Motion Force Frictional Force Newton's Law of Motion Relative Motion

4. ACCELERATED MOTION In non-uniform motion of an object, the velocity of the object is different at different instants, i.e., the velocity of the object keeps on changing with time. Such a motion is said to be an accelerated motion. For example, a vehicle while going from one position to another on a road, moves with different velocities at different instants, hence, it is the illustration of accelerated motion.

5. In an accelerated motion, if the change in velocity of an object in each unit of time is constant, the object is said to be moving with constant acceleration and such a motion is called uniformly accelerated motion. On the other hand, if the change in velocity in each unit of time is not constant, the object is said to be moving wit variable acceleration and such a motion is called non- uniformly accelerated motion.

6. ACCELERATION Acceleration of an object in motion is defined as the ratio of change in velocity and the corresponding time taken by the object,i.e., Acceleration - change in velocity/ time taken

7. Acceleration is a vector quantity. It is positive if the velocity is increasing and is negative if the velocity is decreasing. The negative acceleration is also called a retardation or deceleration The unit of acceleration is in ms 2 in-mks system or SI and cms2 in CGS system. The dimensional formula acceleration is [M LT]

8. (a)Uniform Acceleration An object is said to be moving with a uniform accel ration if its velocity changes by equal amounts in equal intervals of time.

9. b) Variable Acceleration An object is said to be moving with a variable acceleration if its velocity changes by unequal amounts in equal intervals of time.

10. (c) Average acceleration- When an object is moving with a variable acceleration, then the average acceleration of the object for the givern motion is defined as the ratio of the total change in velocity of the object during motion to the total time taken, i.e.,

11. (d) Instantaneous acceleration when an object is moving with variable acceleration,men the object possesses different accelerations at different instants. The acceleration of the object at a given instant of time or at a given point of motion, is called its instantaneous acceleration.