A uniform electric field with a magnitude of 1200 N/C points in the negative x d

Question

A uniform electric field with a magnitude of 1200 N/C points in the negative x direction as shown in the figure.
A) What is the difference in electric potential, ?V = VB - VA, between points A and B?

B) What is the difference in electric potential, ?V = VB - VC, between points B and C?

C) What is the difference in electric potential, ?V = Vc - VA, between points C and A?

D) From the information given in this problem, is it possible to determine the value of the electric potential at point A? If so, determine VA; if not, explain why.


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Explanation / Answer

Given that magnitude of electric field is E=1200N/C mass is m=3.5 x 10-3 kg charge is q=0.05 x 10-6C distance moved d=5cm=0.05m if a is the accleration of the particle then a=qE/m =0.017 m/s2 if v is the final velocity then using the kineamtic relation v2-u2=2as v=2ad =4.12cm/s

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