Friction — MaximumMediumQuestion 30218
Question
A block of mass 5 kg rests on a surface with μₛ = 0.4. The maximum static friction force is: (g = 10 m/s²)
- A2 N
- B5 N
- C10 N
- D20 NCorrect
Correct answer
20 N
Explanation
Maximum static friction = μₛ × N = μₛ × mg = 0.4 × 5 × 10 = 20 N.