A block is on a surface with µs=0.325. it takes 4.11 N to break it free from static friction. How much normal force acts on the block?
\(F_s = \mu_sN\), where \(F_s = 4.11\) and \(\mu_s = 0.325\)
\(4.11 = (0.325)N\)
\(N = \frac{4.11}{0.325}\)
\(N = 12.65\)