Block A, with a mass of 10 kg, rests on a 30°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
Correct Answer:
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