Question: What is the coefficient of static friction if a 50 kg box requires a force of 200 N to start moving?
Options:
Correct Answer: 0.5
Solution:
The coefficient of static friction (μs) can be calculated using the formula F = μs * N, where N is the normal force. Here, N = mg = 50 kg * 9.81 m/s² = 490.5 N. Thus, μs = F/N = 200 N / 490.5 N ≈ 0.4.
