Maria throws two stones from the top edge of a building with a speed of 22 m/s.She throws one straight down and the other straight up.The first one hits the street in a time t₁.How much later is it before the second stone hits? A)5.5 s B)4.5 s C)3.5 s D)6.5 s E)Not enough information is given to work this problem.

Question

Quizplus · Accepted Answer

The stone thrown upwards will take the same time to reach the top as it took to reach the initial point, and then it will take the same time as the first stone to hit the ground. Therefore, the total time for the second stone is t1 + t1 = 2t1. The difference in time is t1, which is 4.5 s.

Maria Throws Two Stones from the Top Edge of a Building