Q.) An electron is released from rest in a weak electric fieldgiven by E=-1.50e-

Question

Q.) An electron is released from rest in a weak electric fieldgiven by E=-1.50e-10 N/C j. After the electron has traveled avertical distance of 1.0um, what is its speed? (don't neglectgravity.) So I tried to use kinematic equations to obtain the fallingspeed of a electron due to gravity, and then obtain the speed dueto the electric field, I then substracted the two fields, but I'mnot sure if the answer is correct. So I tried to use kinematic equations to obtain the fallingspeed of a electron due to gravity, and then obtain the speed dueto the electric field, I then substracted the two fields, but I'mnot sure if the answer is correct.

Explanation / Answer

   use    E V = (1 / 2) m v2    V = E d    V = E d

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