A Wheel of Radius R₁ Has an Axle of Radius

question 2

Multiple Choice

A wheel of radius R₁ has an axle of radius R₂ = R₁. If a force F₁ is applied tangent to the wheel, a force F₂, applied tangent to the axle that will keep the wheel from turning, is equal to

• A) F₁/4
• B) F₁
• C) 4F₁
• D) 16F₁
• E) F₁/16

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