Question

what is meant by acceleration and velocity?

Answer 1

Acceleration is a vector quantity that is defined as the rate at which an object changes its velocity. An object is accelerating if it is changing its velocity.

Velocity is a vector expression of the displacement that an object or particle undergoes with respect to time . The standard unit of velocity magnitude (also known as speed ) is the meter per second (m/s). Alternatively, the centimeter per second (cm/s) can be used to express velocity magnitude. The direction of a velocity vector can be expressed in various ways, depending on the number of dimensions involved.

Answer 2

$\huge \text {Answer -}$

$\large \textbf {\underline {Acceleration -}}$

-Acceleration of a body is defined as the rate of changes of velocity with time.

That is,
$Acceleration = \frac{Change \: in \: velociy}{Time \: taken \: for \: change}$

Now, the change in velocity is the difference between the final velocity and the initial velocity.
Change in velocity = Final velocity - Initial velocity.

That is,
$Acceleration = \frac{Final \: velocity - Initial \: veloity}{Time\: taken}$

Suppose the initial velocity of a body is u and it changes to a final velocity v in time t, then :

$a = \frac{v - u}{t}$

Where,

a=Acceleration
v=Final velocity
u=Initial velocity
t=Time taken

$\large \textbf {\underline {Velocity-}}$

-Velocity of a body is the distance travelled by it per unit time in a given direction.

That is,
$Velocity = \frac{Distance \: travelled \: in \: a \: given \: direction}{Time \: taken}$

If a body travels a distance 's' in time 't' in a given direction, then it's velocity 'v' is given by:

$v = \frac{s}{t}$

Where,

v=velocity
s=distance
t=time taken

$\huge {Be} ^ {Brainly! }$