Why is the velocity of a body moving in a circular path variable?

Since the body describes circular motion, its distance from the axis of rotation remains constant at all times. Though the body’s speed is constant, its velocity is not constant: velocity, a vector quantity, depends on both the body’s speed and its direction of travel.

What is the velocity of a body moving on a circular path?

A body moving at constant speed in a circular path experiences an acceleration directed towards the centre of the circular path. This acceleration is called a centripetal acceleration and is provided by a centripetal force. The force might be due to gravity, electro-static attraction, the tension is a string etc.

When the velocity of a body is variable then?

its acceleration may remain constant.

Can a body moving with uniform velocity have variable speed?

No a body cannot move with uniform velocity having variable speed as the magnitude of velocity keeps changing.

Which type of velocity does a body which moves in a circular track at a constant speed possess Why?

A body moving with uniform SPEED has always variable Velocity because its direction changes continuously. If the body is moving (suppose 5 km per h on a circular track) then it means that it has a SPEED OF 5KM PER HOUR.

When the velocity of the body is variable then 1 its speed may be constant 2 its acceleration may be constant 3 its average acceleration may be constant 4 all of these?

Answer: (3) average acceleration may be constant. Velocity is defined as the displacement of an object per unit time. As acceleration is the rate of change of velocity per unit time and then it would vary as the velocity of an object varies.

Is it correct to say that the velocity of an object is variable when either the speed or the direction of the body changes?

no… both speed as well as direction change is necessary to say that velocity is variable.

What does velocity describe?

The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time. Velocity is equivalent to a specification of an object’s speed and direction of motion (e.g. 60 km/h to the north).

What is variable velocity?

If the velocity of a body either changes in magnitude or in direction or both, then its velocity is said to be variable.

Can a body have constant velocity and variable speed?

No, a body can not have its velocity constant, while its speed varies. The velocity of an object can be changed by: Change of speed.

Will a body move with uniform speed in a circular path?

A body moves with uniform speed in a circular path. Will its velocity be uniform or variable? Since the direction of the body keeps changing at every instant, the velocity of the body keeps changing even though magnitude of velocity remains constant. First you need to understand velocity.

Why is velocity not constant in a circular path?

To maintain a circular path, though, its direction must be constantly changing. Since a change in either speed OR direction means a change in velocity, the object’s velocity is not constant. Why is it useful to define velocity that way?

What is the difference between a variable velocity and uniform velocity?

Velocity is speed in definitely or in particular direction. Then if body moves with uniform speed in a circular path then it’s direction changed again and again. So body Velocity is variable or non Uniform.

Why is the motion of a body moving with a constant speed?

Why is the motion of a body moving with a constant speed around a circular path said to be accelerated? Since in an uniform circular motion, although the speed of body remains constant but the direction of velocity of the body changes continuously and hence the velocity of the body changes at every instant.