all objects having uniform speed need not have uniform velocity describe the help of examples
Answers
All objects may have uniform speed but not uniform velocity:
In CIRCULAR MOTION, the body may have uniform speed, but as the direction is changing, the velocity is not uniform.
Hope it helps..
Uniform speed is always greater than or equal to the uniform velocity .
Explanation:
All objects having uniform speed need not have uniform velocity describe the help of examples
this statement is correct because
speed is a scalar quantity
but velocity is a vector quantity
speed will always greater than or equal to the velocity
speed can never be zero is any distance has travelled.
examples
on a circular track velocity will zero at many places and also negative but speed will not zero at any situation.
velocity of any object depends upon its displacement.
displacement is the shortest distance between the initial position bad final position.
and velocity is displacement per unit time
and if displacement is zero the velocity will also zero.
displacement will zero in the condition when the object comes to its initial position by covering any distance.
similarly if displacement is negative then velocity will also negative.
example,
A man goes to market and returns to home
in this situation
distance = 2 × distance from his home to market
but
displacement will zero become he comes to his initial position.
SI unit of both quantity is meter
so,
distance is always greater than or equal to the displacement.
so,
and speed = distance travelled/time
and displacement/time
and if distance and displacement will not equal so uniform speed will also not equal to the uniform velocity