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 46 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 + 46t+ 400 as the position function, where h is in feet, t in seconds. Ignore air resistance.)

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 46 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 + 46t+ 400 as the position function, where h is in feet, t in seconds. Ignore air resistance.)

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Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter7: Gravitation

Section: Chapter Questions

Problem 51A

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