Velocity
Velocity is a measure of how quickly an object changes position
Velocity is a measure of how quickly an object changes position. It is defined as the rate of change of displacement with respect to time. In other words, velocity tells us how fast an object is moving and in which direction.
The formula for velocity is:
velocity = displacement / time
Here, displacement refers to the change in position of the object, and time is the duration over which the displacement occurs. The units of velocity are typically expressed as distance traveled per unit time, such as meters per second (m/s) or miles per hour (mph).
To calculate velocity, you need to know both the displacement and the time interval. Displacement can be calculated by subtracting the initial position from the final position. Similarly, the time interval can be determined by subtracting the initial time from the final time.
For example, let’s say an object starts at position x1 = 5 meters at time t1 = 0 seconds, and it moves to position x2 = 15 meters at time t2 = 2 seconds. To find the velocity, we can use the formula:
velocity = (x2 – x1) / (t2 – t1)
= (15 – 5) / (2 – 0)
= 10 / 2
= 5 m/s
Therefore, the velocity of the object in this example is 5 meters per second.
It’s worth mentioning that velocity is a vector quantity, meaning it has both magnitude (the speed of the object) and direction. The direction of velocity can be positive or negative, indicating the direction of motion. If the object is moving to the right, the velocity would be positive. If it is moving to the left, the velocity would be negative.
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