At what position is the third bead in equilibrium

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Q. A 16 kg wood ball hangs from a 2.0-m-long wire. The maximum tension the wire can withstand without breaking is 435 N. A 1.2 kg projectile traveling horizontally hits and embeds itself in the wood ball. What is the largest speed this projectile can have without causing the cable to break?

Q. Two small beads having positive charges 12q and q are fixed at the opposite ends of a horizontal insulating rod, extending from the origin (the location of the larger charge) to the point x = d. As shown in the figure below, a third small charged bead is free to slide on the rod. At what position is the third bead in equilibrium? Can this equilibrium be stable? If so when?

Reference no: EM1350497

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