A 400-Kg Block Rests on a 30

question 45

Multiple Choice

A 4.00-kg block rests on a 30.0° incline as shown in the figure. If the coefficient of static friction between the block and the incline is 0.700, what magnitude horizontal force F must act on the block to start it moving up the incline?

• A) 34.0 N
• B) 51.1 N
• C) 54.7 N
• D) 84.0 N
• E) 76.4 N

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