Question

define velocity write its mathematical expression and s i unit and state whether it is a scalar or vector quantity

Answer 1

velocity is the total displacement covered/taken in unit time . It is a venctor quantity.It is expressed by 'v'.It's SI unit is m/s. the formula or expression of velocity (v) for an object covering a displacement s in time t will be:
v=s/t
thank u ! hope it helps!^_^

Answer 2

Hey mate!!! Here is your answer ⬇️⬇️

Velocity is the rate of motion of an object, with the direction. It is carried out on displacement of the object. Velocity is the speed of an object moving in a definite direction. If the direction changes, velocity also chenges.
It's mathematical expressions are :-
$v = u + at$
v is final velocity, u is initial velocity, a is acceleration and t is time.
Other formulae:-
${v}^{2} - {u}^{2} = 2as$
s is the distance travelled in a specific velocity.

Its SI unit is m/s or m s^-1

It is a vector quantity.


Hope it helps dear friend ☺️✌️✌️✌️