A person standing at the edge of a cliff throws a rock upward from a height of 400 ft above ground level with an initial velocity of 56 ft/s. What is the velocity of impact when the rock reaches the bottom of the cliff? Round any intermediate calculations, if needed, to no less than six decimal places, and round your final answer to two decimal places. (Hint: Use h(t) = - 16t² + 56t+ 400 as the position function, where h is in feet, t in seconds. Ignore air resistance.) Answer ft/s Keypac Keyboard Shortc

A person standing at the edge of a cliff throws a rock upward from a height of 400 ft above ground level with an initial velocity of 56 ft/s. What is the velocity of impact when the rock reaches the bottom of the cliff? Round any intermediate calculations, if needed, to no less than six decimal places, and round your final answer to two decimal places. (Hint: Use h(t) = - 16t² + 56t+ 400 as the position function, where h is in feet, t in seconds. Ignore air resistance.) Answer ft/s Keypac Keyboard Shortc

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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