An electron falls through a distance of 2 cm ir a uniform electric field of magnitude `6.0 xx 10^4 NC^(-1)` figure (a). The direction of the field is reversed keeping its magnitude unchanged and a proton falls through the same distance figure (b). Compute the time of fall ir each case. Contrast the situation with that oi 'free fall under gravity'.
`m_(e) = 9.1 xx 10^(-31)kg, m_(p) = 1.7 xx 10^(-27) kg` and `e = 1.6 xx 10^(-19)` C

Answer

`(t_(e) = 1.95 ns, t_(p) = 0.08 mus)`