An insulating rod having linear charge density 1 = 40.0 μC/m and linear mass density μ = 0.100 kg/m is released from rest in a uniform electric field E = 100 V/m directed perpendicular to the rod (Fig. P25.13)
(a) Determine the speed of the rod after it has traveled 2.00 m.
(b) What If? How does your answer to part (a) change if the electric field is not perpendicular to the rod? Explain.

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