Problema Solution
F varies jointly as M1 and M2 and inversely as the square of d.
A. Find the proportionality constant when F=20, M1=5, M2=10 and d=0.2
B. Find F when M1=10, M2=20, and d=0.4
Answer provided by our tutors
A. F = 20 = k(5)(10)/(0.2*0.2)
find k = 20*0.04/50 = 0.016
B. F = 0.016(10)(20)/(0.4^2) = 20