Question

Explain the concept of velocity, speed, acceleration and deacceleration.
Give a example also.

CONTENT QUALITY
NO SPAMMING

Answer 1

speed is the distance travelled in unit time
velocity is displacement travelled in a unit time along a particular direction
acceleration is the change in velocity in unit time (always positive)
deceleration is that condition in which final velocity is negative due to which it becomes negative

Answer 2

Hiii...

1. Velocity :- It is a quantity that gives the speed of the object as well as its direction of motion. The velocity of an object is its displacement per unit time....as ( V = S / t ) ...

It is a vector quantity i.e. both direction and magnitude

2. Speed :- It is equal to the distance covered by an object divided by time interval . It is a Scalar quantity , as it have only magnitude bt not direction...( speed = distance÷ time ).

3. Acceleration :- The rate at which the velocity of an object changes is called acceleration of the object ...

it's also a vector quantity.. ( a= (v-u)/t )

4. Retardation :- if the speed of an object decreases, we say that it is decelerating,or it has a deceleration or retardation. If the acceleration's direction is opposite to that of the velocity,the object will decelerate...



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hope this helps !