Block A, with a Mass of 10 Kg, Rests on a 30

question 1

Multiple Choice

Block A, with a mass of 10 kg, rests on a 30 $\degree$ incline.The coefficient of kinetic friction is 0.20.The attached string is parallel to the incline and passes over a massless, frictionless pulley at the top.Block B, with a mass of 8.0 kg, is attached to the dangling end of the string.The acceleration of B is:

• A)0.69 m/s², up
• B)0.69 m/s², down
• C)2.6 m/s², up
• D)2.6 m/s², down
• E)0 m/s²

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