Question

What is acceleration?​

Answer 1

Acceleration :-

Acceleration of a body is defined as the rate of change of velocity its with time.

Acceleration = Change in velocity/ Time taken for change

• SI unit of acceleration is m/s².

• Acceleration is a vector quantity.

• When a body is moving with uniform velocity,its acceleration will be zero.

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More details :-

Uniform acceleration :-

A body has a uniform acceleration if it travels in a straight line with its velocity increases by equal amounts in equal intervals of time.

Example :-

• The motion of a freely falling body is an example of uniformly accelerated motion.

Non uniform acceleration :-

A body has a non- uniform acceleration if its velocity increases by unequal amounts in equal intervals of time.

Answer 2

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Acceleration is the rate of change of velocity. Usually, acceleration means the speed is changing, but not always. When an object moves in a circular path at a constant speed, it is still accelerating, because the direction of its velocity is changing.