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? 3.84 ✔ 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.) -13.61 X m/s 13.61 X m/s up down
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? 3.84 ✔ 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.) -13.61 X m/s 13.61 X m/s up down
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?
3.84
✔ 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.)
-13.61
X m/s
13.61
X
m/s
up
down](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fdce9ba03-80ad-4ef0-9d01-d879c68da607%2F3c3f47c7-5929-43ad-bd5c-d198d06b25db%2F8khfdx_processed.jpeg&w=3840&q=75)
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?
3.84
✔ 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.)
-13.61
X m/s
13.61
X
m/s
up
down
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