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If a rock is thrown vertically upward from the surface of Mars with velocity of 15 m/s, its height (in meters) after t seconds is h = 15t-1.86t². (a) What is the velocity (in m/s) of the rock after 3 s? m/s (b) What is the velocity (in m/s) of the rock when its height is 10 m on its way up? On its way down? (Round your answers to two decimal places.) up m/s down m/s

If a rock is thrown vertically upward from the surface of Mars with velocity of 15 m/s, its height (in meters) after t seconds is h = 15t-1.86t². (a) What is the velocity (in m/s) of the rock after 3 s? m/s (b) What is the velocity (in m/s) of the rock when its height is 10 m on its way up? On its way down? (Round your answers to two decimal places.) up m/s down m/s

College Algebra
College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter3: Polynomial Functions
Section3.5: Mathematical Modeling And Variation
Problem 7ECP: The kinetic energy E of an object varies jointly with the object’s mass m and the square of the...
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If a rock is thrown vertically upward from the surface of Mars with velocity of 15 m/s, its height (in meters) after t seconds is h = 15t - 1.86t². (a) What is the velocity (in m/s) of the rock after 3 s? m/s (b) What is the velocity (in m/s) of the rock when its height is 10 m on its way up? On its way down? (Round your answers to two decimal places.) up m/s down m/s
Transcribed Image Text:If a rock is thrown vertically upward from the surface of Mars with velocity of 15 m/s, its height (in meters) after t seconds is h = 15t - 1.86t². (a) What is the velocity (in m/s) of the rock after 3 s? m/s (b) What is the velocity (in m/s) of the rock when its height is 10 m on its way up? On its way down? (Round your answers to two decimal places.) up m/s down m/s
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