Actually, unlike common belief there is no exact formula. Scientists (that is the more advanced ones) estimate the speed and velocity of an object or person by looking at it and making a so called "Scientific Guess". It is pretty technical but i think you can understand this brief explanation.
Chat with our AI personalities
If the velocity is constant, thenDisplacement = (initial velocity) multiplied by (time)
the formula for finding acceleration is final velocity, minus initial velocity, all over time. So if you have the acceleration and initial speed, which is equal to the initial velocity, you must also have time in order to find the final velocity. Once you have the time, you multiply it by the acceleration. That product gives you the difference of the final velocity and initial velocity, so then you just add the initial velocity to the product to find the final velocity.
Net acceleration = (change in velocity) divided by (time for the change)
Since speed or velocity = distance/time ,its dimensional formula =L/T = [MoLT-1]
If you are travelling at an average velocity, it is simply the average velocity multiplies by the time travelled at that speed. Otherwise you can use the following formula: x = ut + 1/2at^2 where: x = displacement from origin u = initial velocity (m/s) t = time (seconds)62 a = acceleration (m/s^2