In physics, velocity is a measure of the rate at which an object changes its position. It is a vector quantity, meaning it has both magnitude (speed) and direction. Velocity specifies both the speed of an object and the direction in which it is moving.
Mathematically, velocity is calculated by dividing the change in position (Δx) by the change in time (Δt). The formula for calculating velocity is:
Velocity (v) = Δx / Δt
Here, Δx represents the change in position or displacement, and Δt represents the change in time.
To calculate velocity using specific values for distance and time, you need to know the initial and final positions of the object and the corresponding initial and final times. Then, you can use the formula mentioned above to calculate the velocity.
For example, let's say an object starts at position x1 and time t1, and it moves to a new position x2 at time t2. The distance travelled would be Δx = x2 - x1, and the time taken would be Δt = t2 - t1. You can substitute these values into the velocity formula to find the velocity of the object during that time interval.
It's important to note that velocity is a vector quantity, so it has both magnitude and direction. Therefore, when reporting velocity, it is necessary to include the direction along with the numerical value.