Electrostatics - Kinematics, Newton's Laws

[Temperature101]

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Let W1 be the work required to move two identical point charges from a separation distance of 4 cm to a distance of 3 cm. Let W2 be the work required to move the same charges from a separation distance of 3 cm to 2 cm. Which of the following is true?

A. W1<W2

B. W1=W2

C. W1>W2

D.The relationship between W1 and W2 cannot be determined without knowing the exact value of the charges.

Answer (in white): A

 

[PingPongPro]

The question is essentially asking you if it takes more work to move 2 identical charges from 4cm to 3cm or 3cm to 2cm away. The answer is A=W1<W2, (3cm to 2cm) because the charges are identical and they repel each other. There is more repulsion the closer the charges get to one another, so it is gonna take more work to move them in closer distances.

 

[Temperature101]

The question is essentially asking you if it takes more work to move 2 identical charges from 4cm to 3cm or 3cm to 2cm away. The answer is A=W1<W2, (3cm to 2cm) because the charges are identical and they repel each other. There is more repulsion the closer the charges get to one another, so it is gonna take more work to move them in closer distances.

That was an easy question....My reading comprehension sucks....Thanks