A walker sees a rock fall from the top of a steep cliff and notices that it takes 1.5 seconds for the rock to fall the final third ( or 1/3) of the way. a) What is the height of the cliff in metres? b) In part (a) you get two roots to a quadratic equation and use one of them for your answer. What does the second root represent?
A walker sees a rock fall from the top of a steep cliff and notices that it takes 1.5 seconds for the rock to fall the final third ( or 1/3) of the way. a) What is the height of the cliff in metres? b) In part (a) you get two roots to a quadratic equation and use one of them for your answer. What does the second root represent?
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter1: Introduction And Vectors
Section: Chapter Questions
Problem 44P: Three displacement vectors of a croquet ball are shown in Figure P1.44, where |A|=20.0units,...
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A walker sees a rock fall from the top of a steep cliff and notices that it takes 1.5 seconds for the rock to fall the final third ( or 1/3) of the way.
- a) What is the height of the cliff in metres?
- b) In part (a) you get two roots to a quadratic equation and use one of them for your answer. What does the second root represent?
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