Homework Answers
The pulling force on the right incline must be equal to the pulling force in left incline to be in equillibrium.
Pulling force on the left = component of the force due to gravity along the inclined plane = mg*sin(theta_2)
Pulling force on the right= component of the force due to gravity along the inclined plane = 6.4*g*sin(theta_1)
so, mg*sin(theta_2) = 6.4*g*sin(theta_1)
m = 6.4*sin(60 deg)/sin(24 deg) = 13.63 kg.
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