Speed formula: v=s/t

In physics, the ratio of distance to time is called speed. Velocity formula: V = S/T. Where V stands for velocity, S stands for distance and T stands for time. Speed is a physical quantity representing the speed of an object, which is equal to the distance traveled per unit time. The speed of a car moving in a straight line at a uniform speed is15m/s.

It means that the distance the car passes per second is15m. The average speed is usually used to express the speed of variable speed movement. It is equal to the ratio of the distance traveled by an object to the time taken to travel this distance, and the calculation formula is v=s/t (average speed = total distance/total time).

The relationship between the three:

1, distance = speed × time; Speed = distance/time; Time = distance/speed; Identified by letters: s = vtv = s/t; T = signal-to-noise ratio.

Deduction process and principle explanation;

1. Definition of speed: Speed is the distance an object moves in unit time. Usually expressed in meters per second (m/s) or kilometers per hour (km/h).

2. Definition of distance: Distance is the total length of an object from the starting point to the end point. It can be expressed in meters (m) or kilometers (km). In the derivation, we use d to represent the distance.

3. Definition of time: Time is the duration required for an object to complete a specific motion. Usually in seconds.

4. Deduction process: Based on the definitions of speed, distance and time, we can express speed as the distance in unit time. That is, speed = distance/time, we can further express distance as speed times time. Namely: distance = speed × time.

Substituting this expression into the definition of speed, we can get: speed = (speed× time)/time, and then divide the numerator and denominator of time to get: speed = speed× (time/time). Finally, since any number is divided by itself by 1, we get: speed = speed × 1. So it can be concluded that speed is equal to speed.

Principle explanation:

The derivation process is based on the definitions of speed, distance and time, and basic algebraic operations are used. It shows that the distance of an object can be calculated by multiplying the speed by the time when the speed and time are known. At the same time, if the distance and time are known, the speed can also be calculated by dividing the distance by the time.

This formula has important applications in physics and real life. By measuring speed, time or distance, we can use this formula to derive the third quantity. This is very useful for such aspects as distance and speed calculation of moving objects, travel time estimation and traffic planning.

It should be noted that in the above derivation process, it is assumed that the speed of the object is constant. In practical application, the speed of an object may change, so it is necessary to use more advanced mathematical tools such as calculus to deal with it.