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A 400-Kg Block Rests on a 30

question 18

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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 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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