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The 20 lb black A and the 30 lb black B are supported by an incline that is held

ID: 1825365 • Letter: T

Question

The 20 lb black A and the 30 lb black B are supported by an incline that is held in the position shown. Knowing that the coefficient of static friction is .15 between the two blocks and zero between block B and the incline, determine the value of theta for which motion is impending.

The 20 lb black A and the 30 lb black B are supported by an incline that is held in the position shown. Knowing that the coefficient of static friction is .15 between the two blocks and zero between block B and the incline, determine the value of theta for which motion is impending.

Explanation / Answer

The 20 lb black A and the 30 lb black B are supported by an incline that is held