How is the angle φ₁ related to angle α₁ in the context of force and radius vector? - ROTATIONAL MOTION Quiz | GKFix.in

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Question

How is the angle φ₁ related to angle α₁ in the context of force and radius vector?

A. φ₁ = α₁
B. φ₁ - α₁ = 90°
C. φ₁ + α₁ = 180°
D. φ₁ + α₁ = 90°