Question

What is meant by VELOCITY, UNIFORM VELOCITY and VARIABLE VELOCITY
What is the difference between velocity ans speed

Answer 1

Answer:

Uniform’ and ‘variable’ are just terms we use to describe velocities. A uniform velocity stays constant over a period of time (unchanging), while a variable velocity is one such is that changes over time.

If a ball rolls after being pushed travels 4m/s to the right for a certain amount of time, we can say that the ball had ‘uniform’ velocity as its velocity of 4m/s to the right did not change. (Please take in mind that this is only on the most ideal of situations and systems; this was just for the sake of examples.)

However, if a ball falls down and is continually accelerated by gravity downwards, we can say that it has ‘variable’ velocity as the velocity changes on a time period. A ball gains downward velocity as it falls (acceleration), so we cannot say that its velocity stays at a certain value or is constant. (Take in mind that this also applies to deceleration or slowing down, as velocity does not stay the same value when this happens.

Answer 2

• Velocity- The Distance covered by object In per unit time in a particular/given Direction.

• Uniform velocity-When an object cover equal distance in equal interval of time or vice versa in given direction.

• Variable velocity-Wheb an object cover unequal distance in equal interval of time in given direction

• Speed is Scalar quantity.
• Speed is always positive.

Velocity

• Velocity is vector quantity.
• Velocity is can be positive or negative