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A student drops a pebble from the edge of a vertical cliff. The pebble hits the ground 4 s after it was dropped. What is the height of the cliff? A A. 20 m B D. 80 m B. 40 m C. 60 m (E) E. No answer

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter1: Introduction: The Nature Of Science And Physics

Section: Chapter Questions

Problem 15PE: (a) Suppose that a person has an average heart rate of 72.0 beats/min. How many beats does he or she...

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Question

A student drops a pebble from the edge of a vertical cliff. The pebble hits the ground 4 s after it was dropped. What is the
height of the cliff?
(A A. 20 m
B D. 80 m
C) B. 40 m
C. 60 m
E) E. No answer

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