Question

define displacement velocity and acceleration state its formula and unit​

Answer 1

Answer:

Displacement:

It is defined as the shortest path between the starting point and the ending point of a journey.

In other words, it's the straight line joining the starting and the ending points.

It's SI unit is Metres (m).

Formulas :

• s = ut + ½at²
• v² = u² + 2as

Velocity:

It is defined as the rate of change of Displacement. It's a vector quantity.

SI unit : m/s (Metres/sec)

Formulas:

• v = dx/dt

Acceleration:

It is defined as the rate of change of velocity with respect to time. It is also a vector quantity.

SI unit : metre/sec² (m/s²)

Formulas:

• acc. = dv/dt

Answer 2

$\huge\star{\pink{\underline{\mathrm{Displacement:}}}}$

$\hookrightarrow$ The shortest distance between initial point to final position is known as $\bold{\red{Displacement}}$

OR

$\hookrightarrow$ Displacement is the change in an object's position from the origin or the starting point.

$\hookrightarrow$ The standard unit of displacement in the International System of Units ( SI ) is the meter(m).

$\tt\bold{Formula:-}$

• d = vot + (1/2)at^2

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$\huge\star{\pink{\underline{\mathrm{Velocity:}}}}$

$\hookrightarrow$ It is the speed at which something moves in one direction is known as $\bold{\red{Velocity}}$

OR

$\hookrightarrow$ Velocity is defined as the rate of travel of an object, along with its direction. 

$\hookrightarrow$ The standard unit of velocity in the International System of Units ( SI ) is meter per second (m/s)

$\tt\bold{Formula:-}$

• v = Δs/Δt.

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$\huge\star{\pink{\underline{\mathrm{Acceleration:}}}}$

$\hookrightarrow$ It is the rate of change of the velocity of an object with respect to time is known as $\bold{\red{acceleration}}$

OR

$\hookrightarrow$ Acceleration is the change of velocity divided by the change of time.

$\hookrightarrow$ The standard unit of Velcity in the International System of Units is m/s^2

$\tt\bold{Formula:-}$

• a = Δv / Δt 

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