The height (in meters) of a projectile shot vertically upward from a point 4 m above ground level with an initial velocity of 23.5 m/s is h = 4 + 23.5t - 4.9t2 after t seconds. (a) Find the velocity (in m/s) after 2 seconds and after 4 seconds. v(2) = m/s v(4) = m/s (b) When does the projectile reach its maximum height? (Round your answer to two decimal places.) (c) What the maximum height? (Round your answer to two decimal places.) m (d) When does hit the ground? (Round your answer to two decimal places.) (e) With what velocity (in m/s) does it hit the ground? (Round your answer to two decimal places.) m/s

The height (in meters) of a projectile shot vertically upward from a point 4 m above ground level with an initial velocity of 23.5 m/s is h = 4 + 23.5t - 4.9t2 after t seconds. (a) Find the velocity (in m/s) after 2 seconds and after 4 seconds. v(2) = m/s v(4) = m/s (b) When does the projectile reach its maximum height? (Round your answer to two decimal places.) (c) What the maximum height? (Round your answer to two decimal places.) m (d) When does hit the ground? (Round your answer to two decimal places.) (e) With what velocity (in m/s) does it hit the ground? (Round your answer to two decimal places.) m/s

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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