*9. ssm The potential at location A is 452 V. A positively charged particle is released there from rest and arrives at location B with a speed vB. The potential at location C is 791 V, and when released from rest from this spot, the particle arrives at B with twice the speed it previously had, or 2vB. Find the potential at B.

 

Going from A to B conservation of energy means:

 

 

Solve for vB1

 

Similarly going from C to B yields

 

 

Solve for vB1

 

Now using the fact that

 

 

Square both sides

 

 

 

 

 

 

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This page last updated on June 9, 2018