1. The property which resists the relative motion between two surfaces in contact is called friction.
2. The coefficient of static friction is defined as the ratio of limiting force of...
Given: FL = 120N, Fk = 80N, m = 40 kg, g = 9.8 m/s2
To find:
i. Coefficient of static friction (μS)
ii. Coefficient of kinetic friction (μk)
Formulae:
i. μs = \(\frac{F_L}{N}\)
ii. μk = \(\frac{F_K}{N}\)
Calculation:
From formula (i) we get.
N =...
Given: m = 20 kg, FL = 100 N, μk = 0.4
To find:
i. Coefficient of static friction (μS)
ii. Minimum force required (Fk)
Formulae:
i. μs = \(\frac{F_L}{N}=\frac{F_L}{mg}\)
ii. μS = \(\frac{F_K}{N}\)
Calculation:
From formula (i),
μs = \(\frac{100}{20\times9.8}\) = 0.5102
From formula (ii),
Fk = μkN...
