The first formula is from Newtons second law relates force mass and acceleration in an equation. For more information see Excel performance. The commonly used formula for speed calculates average speed rather than instantaneous speed.
Tangential speed radial distance x rotational speed.
RangeCalculate is one of the most useful tools in Excel for performance optimization because you can use it to time and compare the calculation speed of different formulas. Where d is the diameter of the work in mm. Average speed is measured in units of distance per time and the average speed formula looks like this. The most common equation for speed is.