ch05-p037 - cos mg = 0, where = 37. We answer the questions...

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37. The solutions to parts (a) and (b) have been combined here. The free-body diagram is shown below, with the tension of the string G T , the force of gravity mg G , and the force of the air G F . Our coordinate system is shown. Since the sphere is motionless the net force on it is zero, and the x and the y components of the equations are: T sin θ F = 0 T
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Unformatted text preview: cos mg = 0, where = 37. We answer the questions in the reverse order. Solving T cos mg = 0 for the tension, we obtain T = mg / cos = (3.0 10 4 kg) (9.8 m/s 2 ) / cos 37 = 3.7 10 3 N. Solving T sin F = 0 for the force of the air: F = T sin = (3.7 10 3 N) sin 37 = 2.2 10 3 N....
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