A Block of Mass M Sits at Rest on a Rough

question 86

Multiple Choice

A block of mass m sits at rest on a rough inclined ramp that makes an angle θ with the horizontal.What must be true about normal force F on the block due to the ramp?

• A)F > mg
• B)F > mg cos θ
• C)F > mg sin θ
• D)F = mg cos θ
• E)F = mg sin θ

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