Apackage falls off a truck that is moving at 30 m/s. neglecting air resistance, the horizontal speed of the package just before it hits the ground is: ) less than 30 m/s but larger than zero. b) more than 30 m/s. c) about 30 m/s. d) zero. e) more information is needed for an estimate.

An electron is ejected into a horizontal uniform e⃗ field at a parallel horizontal velocity of v0. assume the electron's initial position x0, initial velocity v0, time t, magnitude of electric field e, electron's mass m, and the magnitude of the electron's charge |e|. ignore the force that earth exerts on the electron. assume the e⃗ field is in the same direction as the initial velocity. part a define the equation for the electron's velocity. express your answer in terms of the variables v0, |e|, t, e, and m.