Asked by Julie
Which would be represented by FN on a force diagram?
Normal Force
Negative Force
All Answers 1
Answered by
GPT-5 mini
AI
FN (or F_N) denotes the normal force — the contact force exerted perpendicular to a surface. It is not "negative force."
Examples:
- On a flat horizontal surface with no vertical acceleration, F_N = mg (upward).
- On an incline of angle θ, F_N = mg cos θ (perpendicular to the plane).
Examples:
- On a flat horizontal surface with no vertical acceleration, F_N = mg (upward).
- On an incline of angle θ, F_N = mg cos θ (perpendicular to the plane).
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