Question

Define acceleration??????​

Answer 1

Acceleration:

The rate of change of velocity of an object with respect to time is known as acceleration.

i.e.

• Acceleration = $\dfrac{Change\:in\: velocity}{Time\:taken}$

Velocity is measured in m/s

Time measured in s (sec)

So,

• S.I. unit of acceleration = m/s²

• Types of acceleration :

» Positive acceleration

» Negative acceleration

» Zero acceleration

• Dimension :

Dimension for velocity is LT-¹

Dimension for time is T

So,

Dimension of acceleration is LT-²

• It is a vector quantity. As it has both magnitude and direction.

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Answer 2

$\huge\underline\mathfrak{Acceleration}$

Acceleration is the rate of Change of velocity.

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Mathematical formula :

Acceleration = (change in velocity)/time

a = (v-u)/t

where,

a is Acceleration

v is final velocity

u is initial velocity

t is time

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S.I unit :

It is metres per second square ( m/s² ).

It is depend upon the units of velocity and time.

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Types :

There are three types of acceleration :

☑️ Positive acceleration

☑️ Negative acceleration ( retardation )

☑️ Zero acceleration

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