Two masses traveling at the same speed v0 collide head on. Nothing is known about the collision other than that it is not completely inelastic. v0 v0 m 2m After the collision the larger mass 2m timm (owt76) – Homework 05 – yao – (54840) 5 moves at speed v in its original direction of motion, while the smaller mass m recoils at half its original speed. 0.5 v0 v m 2m What is the speed v?

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.