Originally Posted by bigstarz
Given the above data we have:b) A channel 30 cm long, 5.0cm wide and 4.5 cm deep took 36 minutes to mill. Use this information to determine the constant proportionality, with units.
I'm sure you can now do these two parts yourself.c) How long will it take to mill a channel in the same material, 45 cm long, 6.4 cm wide, and 3.75 cm deep?
d) How long would the machining job of b) above take, if the length, width, and depth were all doubled