A small (point) charge, q = 3.87x10-8 C, with a mass of 6.55x10-5 kg is held...
A small (point) charge, q = 3.87x10-8 C, with a mass of 6.55x10-5 kg is held stationary a distance d = 1.30 m above the top surface of a large, stationary spherical charge, Q = 4.49x10-7 C, of radius 0.20 m. The small charge is dropped (from rest) and it falls towards the larger charge.
Both gravity and the electric interactions are important in this problem.
What is the velocity of the small charge just before hits the large charge? (The small charge falls a total distance of d.)
Give your answer in m/s to at least three significant figures (to avoid rounding errors).
Homework Answers
Concept - Using energy conservation principle, the initial potential energy due to the gravitational potential energy and electrical potential energy will be equal to final kinetic energy plus electrical potential energy. The zero level of gravitational potential energy is taken at the surface of the sphere where the charge finally lands.
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A small (point) charge, q = 3.87x10-8 C, with a mass of
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