Lecture 5 ACT 1 1D Freefall Alice and Bill are standing at the top of a cliff of height H. Both throw a ball with initial speed vo. Alice straight down and Bill straight up. The speed of the balls when they hit the ground are va and vB respectively. Which of the following is true: (a va< vB (b)VA=VB (c)VA> VB Alice Vol Bill 0 H B Physics 121: Lecture 5, Pg 3Physics 121: Lecture 5, Pg 3 Lecture 5 ACT 1 1D Freefall Alice and Bill are standing at the top of a cliff of height H. Both throw a ball with initial speed v0 , Alice straight down and Bill straight up. The speed of the balls when they hit the ground are vA and vB respectively. v0 v0 Alice Bill H vA vB Which of the following is true: (a) vA < vB (b) vA = vB (c) vA > vB