A brick is held over the edge of a tall building an dropped from rest. The acceleration from gravity is 9.8 m/s?. a. What is its instantaneous speed at the end of 3 s of fall? b. The building happens to be the tallest building in the world, which is 828 meters. What's the instantaneous speed when the brick hit the ground? (For simplicity, let's assume that only gravity affects the motion here, and ignore any other effects like wind and air resistance.)

A brick is held over the edge of a tall building an dropped from rest. The acceleration from gravity is 9.8 m/s?. a. What is its instantaneous speed at the end of 3 s of fall? b. The building happens to be the tallest building in the world, which is 828 meters. What's the instantaneous speed when the brick hit the ground? (For simplicity, let's assume that only gravity affects the motion here, and ignore any other effects like wind and air resistance.)

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter3: Motion Along A Straight Line

Section: Chapter Questions

Problem 60P: A swan on a lake gets airborne by flapping its wings and running on top of the water. (a) If the...

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