2. If the equation is consistent in its units, what are the units of 3 and 4?
Solution
1. For the equation to be valid, it must be dimensionally homogeneous, so that each term must have the dimension of length. The constant 3 must therefore have the dimension , and 4 must have the dimension length.
length/time
2. For consistency of units, the constants must be and
3 ft/s
4 ft.