Basic Knowledge of Acceleration

Physics

definition

Acceleration

Acceleration is defined as the rate of change of velocity with time. It is a vector quantity. Its unit is
Constant speed does not guarantee that acceleration is zero. For example a body moving with constant speed in a circle changes its velocity every instant and hence its acceleration is not equal to zero.

definition

Retardation

Retardation (or deceleration) of a body whose velocity is decreasing with time is defined as the negative of acceleration. In other words, it is equal to the magnitude of acceleration of a body whose velocity is decreasing with time.
For a decelerating body, direction of velocity and acceleration is always opposite in direction.
Example: When a body is thrown vertically upwards, during the upward motion, its velocity decreases and at the highest point it becomes zero. This is a case of retardation.

definition

Unit of Acceleration

Acceleration is defined as the rate of change of velocity or velocity per unit time.Its unit is , can also be expressed as .
Centripetal acceleration:Centripetal acceleration is the rate of change of tangential velocity.

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Uniform and Non-uniform Acceleration

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Advanced Knowledge of Distance/Displacement - Time Graph

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Acceleration - Time Graph

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Average and Instantaneous Acceleration

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Advanced Knowledge of Acceleration

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Average and Instantaneous Acceleration - Problem L1

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