# Velocity Formula

## Velocity

The speed of a body in a specific direction is the measure of Velocity. Rate of change in displacement with respect to time is known as velocity. Velocity is a vector quantity that has both magnitude and direction. Velocity is a measure of how much time an object takes to reach a destination with direction.

It is represented by and is articulated as

$V=\frac{s}{t}$

Where,

s = displacement
t= time taken

Since displacement is conveyed in meters and time taken in seconds. Velocity is articulated in meters/second or m/s.

In any numerical if any of these two quantities are given we can calculate the missing quantity by making use of this formula.

### Solved Examples

Underneath are given the velocity based problems which helps you to understand more about it.

Example 1: A plane moves the distance of 500 Km in 1 hr. Calculate its velocity?

Displacement S = 500 km = 500 × 103 m,
Time taken t = 1hr = 60 × 60 = 3600 s.

$Velocity\;&space;is\;&space;given\;&space;by\;V=\frac{s}{t}=\frac{500\times10^{3}}{3600}=139m/s$

Example 2: A submarine descends 150 ft in 3 seconds. Find the Velocity of submarine?

Distance travelled S = – 150 ft,
Time taken t = 3 seconds

$Velocity\;&space;is\;&space;given\;&space;by\;V=\frac{s}{t}=\frac{-150ft}{3s}=-50ft/s$

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