A child in Yellowstone National Park kicked a rock off a bridge down into a river below. The bridge had a height of 405 meters above the river. If the child kicked the rock with an initial velocity of 2.1 m/s,  What was the amount of time required for the rock to hit the river below? How far horizontally from the bridge did the rock travel?

An Introduction to Physical Science
14th Edition
ISBN:9781305079137
Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Chapter2: Motion
Section: Chapter Questions
Problem 12MC: A football is thrown on a long pass. Compared to the balls initial horizontal velocity, the velocity...
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  1. A child in Yellowstone National Park kicked a rock off a bridge down into a river below. The bridge had a height of 405 meters above the river. If the child kicked the rock with an initial velocity of 2.1 m/s, 
    1. What was the amount of time required for the rock to hit the river below?
    2. How far horizontally from the bridge did the rock travel?
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