Question 458640
We can establish an equation for the electron's position as a function of time.


*[tex \LARGE 4.9 cm = \frac{1}{2}a_e(14 ms)^2]


*[tex \LARGE a_e = .03828 \frac{cm}{ms^2}]


To convert this to the desired units, we need to use a bunch of unit multipliers:


*[tex \LARGE 0.3838 \frac{cm}{ms^2}(\frac{1 m}{100 cm})(\frac{1 km}{1000 m})  (\frac{10^{12} ms^2}{1 s^2}) = 3.838*10^6 \frac{km}{s^2}]


Strange that your question wants kilometers per second squared instead of the traditional SI unit meters per second squared.