The elbow is considered a third class lever because
a. the effort is applied further from the fulcrum than the load
b. the effort is applied closer to the fulcrum than the load
c. the fulcrum is in the center of the lever
d. the elbow is used to lift objects

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.