Two electrons repel each other with a force that varies inversely as the square of the distance between them. (Let k represent the constant of proportionality.) One electron is fixed at the point (2, 4). Find the work done in moving the second electron from (-5, 4) to (1, 4).

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i just did this and got a 100.

we need to know the time interval during which the force acts. impulse of force = momentum change

lol

explanation: