1. m(mass) x a(acceleration) = ?f(force) [3 marks]
a. input = m, a
b. output = f
2. s(distance) = v(rate of change of speed) x t(time) [3 marks]
a. input =v, t
b. output=s
3. nCk(combinations) = n!/((n???k)k!)! [3 marks]
a. input=n, k
b. output=nCk
4. Exit the program
