what is acceleration
Answers
the rate of change of velocity per unit of time
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Answer:
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⇒ Acceleration is the rate of change of velocity of an object with time.
⇒ Hence, the mathematical expression for acceleration is given as:
Acceleration = Change of velocity / Time taken
Acceleration = v - u / t
⇒The acceleration is a vector quantity because it has magnitude (value) as well as direction of it's own.
» The two types of acceleration are:
♦ Uniform Acceleration
⇒If the velocity of the object changes by equal amounts in equal intervals of time, then the acceleration of the object is said to be uniform.
⇒For example, the rolling motion of a ball down a smooth inclined plane.
♦ Non Uniform Acceleration
⇒If the velocity of the object changes by unequal amounts in equal intervals of time, then the acceleration of the object is said to be non uniform.
⇒For example, the motion of a bus from one town to another is a non uniformly accelerated motion.
♦ The SI unit of acceleration it's metre/(second) ² which is written as m/s².
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