At some instant

PHYSICS · Multi-part · AP · Physics 2: Algebra-based · Electric Force Field and Potential · Electric Force Field and Potential

Problem

At some instant, the velocity components of an electron moving between two charged parallel plates are vx=1.5×105 m/sv_x=1.5\times10^5\,\text{m/s} and vy=3.0×106 m/sv_y=3.0\times10^6\,\text{m/s}. Suppose the electric field between the plates is E=(120 N/C)ȷ^\mathbf{E}=(120\,\text{N/C})\hat{\jmath}. (a) What is the acceleration of the electron? (b) What will be the velocity of the electron after its xx-coordinate has changed by 2.0 cm2.0\,\text{cm}?

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