What is F ac,y , the y-component of the force on the segment of the wire that co

Question

What is Fac,y, the y-component of the force on the segment of the wire that connects points a and c in Position 1?

The wire is now rotated 180o about the y-axis to Position 2, as shown. What is U12, the change in potential energy of the wire? Note that U12 is a signed number. U12 is positive if the potential energy in Position 2 is higher than the potential energy in Position 1.

The wire is now rotated back 90o about the y-axis towards position 1. If the wire is released from this position, how would it move?

The wire is now returned to Position 1 and then rotated 180o about the x-axis to Position 3, as shown. What is U13, the change in potential energy of the wire? If the potential energy increases in going from Position 1 to Position 3, the change in potential energy is positive.

Explanation / Answer

3. U=2uB and u=IA where A=area of the triangle 4. It rotates toward position 1 5. Is same answer as #3

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