Heather and Jerry are standing on a bridge 46m above a river.Heather throws a rock straight down with a speed of 20 m/s. Jerryat the exact same instant of time, throws a rock straight up withthe same speed. Ignore air resistance. Question: A) How much time elapses between the first splash and thesecond? B) Which rock has the faster speed as it hits the water?

Heather and Jerry are standing on a bridge 46m above a river.Heather throws a rock straight down with a speed of 20 m/s. Jerryat the exact same instant of time, throws a rock straight up withthe same speed. Ignore air resistance. Question: A) How much time elapses between the first splash and thesecond? B) Which rock has the faster speed as it hits the water?

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter6: Motion In Two Dimensions

Section: Chapter Questions

Problem 84A

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