Question

Define relative velocity. Write the expression for relative velocity between two objects moving in same

direction.​

Answer 1

Question ⤵️

1) Define relative velocity.

2) Write the expression for relative velocity between two objects moving in same direction.

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ANSWER 1 :-

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.

One obvious example of this is to work out how long it will take two objects travelling along a line at different velocities to collide – like cars on a road.

ANSWER 2 :-

When the two objects are moving in the same direction ,

Please refer to the attachment ✌️

Additional Information :-

1) Relative velocity is a difference in velocities of two objects where one is at rest with respect to another.

It can be expressed as V = Vab + Vbc when two bodies are in same direction.

2) STATEMENT-1 The dimensional formula for relative velocity is same as that of the charge in velocity.

STATEMENT-2 [Relative velocity] = [Change in velocity] .

STATEMENT-3 In addition or subtraction of two physical quantities of same dimension, the result also have same dimensIon only.

3) Speed and velocity are both measured using the same units. The SI unit of distance and displacement is the meter. The SI unit of time is the second. The SI unit of speed and velocity is the ratio of two — the meter per second .

Answer 2

Answer:The relative velocity of body A with respect to body B is defined as the time rate of change of

is defined as the time rate of change of displacement of A with respect toB .

Explanation: The time rate of change of relative velocity of A with respect to B , denoted by Vab .