A small metal sphere, carrying a net charge of q_1=−2μC, is held in a stationery...
A small metal sphere, carrying a net charge of q_1=−2μC, is held in a stationery position by insulating supports. A second small metal sphere, with a net charge of q_2=−8μC and mass 1.50 g is projected towards q_1. When the two spheres are 0.800m apart, q_2 is moving towards q_1 with speed 20 ms:−1 as shown in the figure. Assume that the two spheres can be treated as point charges. You can ignore the force of gravity. How close does q_2 get to q_1?