Weight 200 40 time4 The average running back who makes it to the NFL will have a Speed Score around 100 with most running back prospects falling between 85 and 110. The calculator will calculate the speed in most used units. This RPM formula can be used for other machining operations as well.
D VT Traveling time can be calculated using.
1750 RPM 1000 RPM 35 INCHES D 2 D 2 6125 INCHES. Cutting speed CS X 4 Diameter of cutter D This simplified version of the RPM formula is the most common formula used in machine shops. Below is a small calculator that will solve the ratio for you. Determine what your pace was for your training run around the neighborhood or track.