Question

explain briefly the concepts of velocity and acceleration​

Answer 1

Answer:

velocity :- it is the change in position of an object with respect of time and refrence of frame. It is a vector quantity. It's SI unit is m/s2

Acceleration :- it is the change in velocity per unit unit . it can be negative as well as positive. Negative acceleration is also called retradation. For eg. a car starting from rest . this si an example of positively accelerated motion.

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Answer 2

Velocity

Distance travelled by the object in the given time period in particular direction

or

Rate of change of displacement

or

Speed of an object in a specific directions

Velocity=displacement/time

SI unit = metre

CGS unit=cm

It is a vector quantity

Acelaration

rate of change of velocity is called acceleration.

or

changed in velocity of unit time

Acceleration=change in velocity/time

Acceleration=final velocity - initial v velocity/time

SI unit = m/s^2 or ms^-1

CGS unit - cm/s^2

It is a vector quantity

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