Question
(a) Two 0.500 g raindrops in a thunderhead are 1.00 cm apart when they each acquire 1.00 mC charges. Find their acceleration. (b) What is unreasonable about this result? (c) Which premise or assumption is responsible?
1. $1.80 \times 10^{11} \textrm{ m/s}^2$
2. This acceleration is too large, and would break apart the rain drop.
3. $1.00 \textrm{ mC}$ is unreasonably large. A $3 \times 10^{-8} \textrm{ C}$ charge would be more reasonable. See the video for an explanation as to why.
Solution Video