A stone is thrown straight up from the edge of a roof, 675 feet above the ground, at a speed of 18 feet per second. A. Remembering that the acceleration due to gravity is -32 feet per second squared, how high is the stone 2 seconds later? Don't forget to enter the correct units. B. At what time does the stone hit the ground? C. What is the velocity of the stone when it hits the ground:

Glencoe Physics: Principles and Problems, Student Edition
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ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter2: Representing Motion
Section: Chapter Questions
Problem 66A
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A stone is thrown straight up from the edge of a reof, 675 feet above the ground, at a speed of 18 feet
SEOne
per second.
A. Remembering that the acceleration due to gravity is -32 feet pET second squared, how high is the stone 2 seconds later?
Don't forget to enter the correct units.
B.At what time does the stone hit the ground
C. What is the velocity of the stone when it hits the ground?
Transcribed Image Text:A stone is thrown straight up from the edge of a reof, 675 feet above the ground, at a speed of 18 feet SEOne per second. A. Remembering that the acceleration due to gravity is -32 feet pET second squared, how high is the stone 2 seconds later? Don't forget to enter the correct units. B.At what time does the stone hit the ground C. What is the velocity of the stone when it hits the ground?
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