use derivatives rectilinear motion A rock was thrown from a 225m high place. Below, a person is walking, z(s) = s – 15s? + 63s – 49.Let z meters be the distance of the person from the position that is right below the rock at sseconds.a. max height of rock?b. speed of rock when it landed?c. when is the person at rest?d. will the rock fall on the person? why or why not

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Answered: A rock was thrown from a 225m high…

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter1: The Study Of Motion

Section: Chapter Questions

Problem 6C

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A rock was thrown from a 225m high place. Below, a person is walking, z(s) = s³ – 15s² + 63s – 49. Let z meters be the distance of the person from the position that is right below the rock at s seconds. a. max height of rock?