Kinematics-Motion in a Straight Line

The expression speed and velocity denotes how quickly an item moves. We run over circumstances where we want to recognise which of at least two items moves quicker. However, if the direction of movement is the other way, it is challenging to decide the quickest.

What is Kinematics- Motion in a Straight Line?

If an object is changing its place concerning its environmental factors with time, then, at that point, it is said to be moving or in motion. It is an adjustment of the place of an item over time. Movement in a straight line is only linear or straight movement. As the name recommends, it’s in a specific straight line; accordingly, one might say it utilises just one dimension.

Uniform Kinematics- Motion in a Straight Line

If a body goes in a linear or straight line and covers an equivalent measure of distance in an equivalent time, it is said to have uniform movement. In basic words, a body is said to have a uniform speed increase assuming that the pace of velocity of its speed stays constant.

Non-uniform Kinematics- Motion in a Straight Line

Unlike the uniform speed increase, the body is said to have a non-uniform motion when the speed of a body changes by inconsistent amounts in equivalent timespans, the pace of progress of its velocity changes at various points of time during its development.

What is Velocity?

The velocity can be represented as the rate of change in the position of an object with respect to the time and frame of reference. Mathematically, velocity is defined as the displacement divided by time. Velocity is a vector quantity that depends on both direction and magnitude. The S.I. unit of the velocity is metre per second (ms-1). When there is a variation in the direction or the magnitude of an object, the body is called to be accelerating. 

The formula of velocity= displacement/time

Examples of Velocity

Let us suppose a boy is moving around a rectangular park. When he crosses the park through the diagonal, the distance covered by that boy is said to be displacement, and his velocity will be calculated by dividing the displacement by time taken by him.

Speed and Velocity

Velocity and speed can be confusing for most of us. Indeed, the contrast between velocity and speed is that speed provides us with a thought of how quickly the item is moving while speed lets us know its speed and the direction an object is moving. We can characterise speed as the component of distance voyaged though speed is an element of displacement. 

Average velocity is complete displacement by all-out time & is given by the term v = △x/△t, where ∆x is the absolute displacement of a body & ∆t is time. The average speed is less all of the time than or equivalent to the  average speed; displacement cannot be higher than distance voyaged, yet the distance travelled could be more than that of the displacement.

Difference between speed and velocity

Units of Velocity

The S.I. units for speed are m/s (metres each second), yet speed may likewise be communicated in any units of distance per time. Different units incorporate miles each hour (mph), kilometres each hour (kph), and kilometres each second (km/s).

Velocity Formula

The Velocity formula is as per the following:

v = x/t

Where, 

v = velocity

x = displacement 

t = time

Conclusion

The beginning or the known term of initial velocity is the speed of the item with which it begins moving. On the opposite side, the last velocity is the speed of a similar moving item whenever it has arrived at its final position. The essential distinction between velocity and speed is that the previous has just magnitude, while velocity has both directions and magnitude.