A negatively charged particle is released from rest at point B and accelerates until it reaches point A. The mass and charge of the particle are 4×10−6 kg and −2×10−5 C, respectively. Only the gravitational force and the electrostatic force act on the particle, which moves in a horizontal straight line without rotating. The electric potential at A is 36 V greater than at B; in other words, VA−VB=36 V. What is the translational velocity of the particle at point A?
NEWTUBE FisicaTIC
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