In the figure shown, block R has a mass of 90 kg and block Q has a mass of 45 kg. They are...

In the figure shown, block R has a mass of 90 kg and block Q has a mass of 45 kg. They are connected by a rope parallel to the inclined plane. The coefficient of static friction between R and the plane is 0.10, and between Q and the plane is 0.40. Calculate the value of the angle θ at which motion impends down the plane. Calculate the magnitude of the tension in the rope.

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