Write the velocity?and also write different types of velocity
Answers
Answer:
Velocity-
Net displacement of a particle in per unit time is known as velocity.
Important Points-
=> Velocity is a vector quantity and its unit is metre per second.
=> For moving body velocity may be +ve, -ve or 0.
=> Direction of average velocity is always along the net displacement means from initial to final position but the direction of instantaneous velocity is always tangential to the path [See the attachment where (i) and (ii) show Instantaneous Velocity ].
Types of Velocity-
1. Uniform Velocity -
If magnitude and direction of velocity remain unchanged then it is known as uniform velocity.
2. Non-uniform Velocity -
If either of magnitude or direction change then it is known as non uniform velocity.
Some Important terms and formula's-
1. Average velocity-
The ratio of total displacement and total time taken by the particle is known as average velocity.
Vavg \: = \frac{total \: displacement}{total \: time \: taken}Vavg=
totaltimetaken
totaldisplacement
2. Instantaneous velocity -
The velocity of a particle at a particular instant or movement is known as instantaneous velocity.If time interval is made infinitely or negligible small then average velocity is converted into instantaneous velocity.
Vinstantaneous \: = \: \frac{dr}{dt}Vinstantaneous=
dt
dr
hope this helps you
Explanation:
The rate of change of position of an object with time in a given direction is called velocity it can also be defined as the speed of a object in a given direction it is equal to the displacement covered per unit time
Velocity = Displacement /Time
Different type of velocities
1. Uniform velocity :-
A body is said to be moving with uniform velocity if it covers equal displacements in equal intervals of time however small these time
interval may be.
2. Variable velocity :-
A body is said to be moving with variable if either its speed changes or direction of motion changes are both change with time.
3. Average velocity :-
for an object moving with variable velocity average velocity is defined as the ratio of total displacement to the total time interval in which the displacement occurs.
Average velocity = Total displacement / Total time