# Question: What Is Relative Velocity In Physics?

The velocity of an object A relative to another object B is the velocity that object A would appear to have to an observer moving with B. Often in physics problems we describe situations relative to an outside observer, but the relative velocity measured by an observer “inside the problem” may be useful.

## What do you mean by relative velocity?

: the vector difference between the velocities of two bodies: the velocity of a body with respect to another regarded as being at rest — compare relative motion.

## What is relative velocity explain with example?

Answer: Relative velocity is defined as the velocity of an object B in the rest frame of another object A. 2) A motorcycle travelling on the highway at a velocity of 120 km/h passes a car travelling at a velocity of 90 km/h.

## What is relative velocity Class 11?

This is the velocity of an object relative to some other object which might be stationary, moving slowly, moving with same velocity, moving with higher velocity or moving in opposite direction.

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## What is relative velocity formula?

This velocity is computed according to the person as an observer inside the object. Mathematically, we nay say that the relative velocity will be the vector difference between the velocities of two objects. The relative velocity of A with respect to B= velocity of the body A – velocity of the body B.

## What is meant by motion is relative?

The statement that motion is relative is an important concept in physics. The meaning behind this statement is that the motion of an object is relative to either the frame of reference of the observer, or to another distinct frame of reference.

## What is uniform velocity give an example?

When a body covers equal distances in equal intervals of time (however small may be the time interval) in a specified direction, the body is laid to be moving with uniform velocity. Example: A car moving on a straight road with constant speed has uniform velocity.

## How do you find relative velocity in physics?

In order to work out the velocity of one car relative to another, we need to subtract the velocity of the car we are observing from the velocity of the other car. As both velocities are in a straight line, we can do this easily without worrying too much about the directions of the velocities.

## What is the difference between absolute velocity and relative velocity?

Absolute velocity of a object is the velocity observed seen as same in every inertial frames of reference. Relative velocity of an object is the velocity of the object with respect to any other frame of reference.

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## What is difference between speed and velocity?

The reason is simple. Speed is the time rate at which an object is moving along a path, while velocity is the rate and direction of an object’s movement.

## What are the types of relative velocity?

Classical mechanics

• In one dimension (non-relativistic)
• In two dimensions (non-relativistic)
• Galilean transformation (non-relativistic)
• Parallel velocities.
• Perpendicular velocities.
• General case.

## Is relative velocity a vector?

Yes, relative velocity is a vector quantity.

## What is relative motion formula?

The relative velocities are the time derivatives of the position vectors. Therefore, →vPS=→vPS′+→vS′S. The velocity of a particle relative to S is equal to its velocity relative to S′ plus the velocity of S′ relative to S.

## Can velocity be negative?

An object which moves in the negative direction has a negative velocity. If the object is slowing down then its acceleration vector is directed in the opposite direction as its motion (in this case, a positive acceleration).

## When relative velocity is zero?

The relative velocity becomes zero when the two bodies move in the same direction with the same velocity. When a person sits on the chair, the relative velocity of the person with respect to the chair is zero. The relative velocity of the chair with the person is also zero.