You drop a 2.20 kg book to a friend who stands on the ground at distance D = 11.0 m below. Your friend's outstretched hands are at distance d = 1.40 m above the ground (see the figure). (a) What is the speed of the book when it reaches her hands? (b) If we substituted a second book with twice the mass, what would its speed be when it reaches her hands? (c) If, instead, the book were thrown down with initial speed 4.90 m/s, what would be the answer to (a)? (田 (田 (a) Number Units (b) Number i Units (c) Number Units

You drop a 2.20 kg book to a friend who stands on the ground at distance D = 11.0 m below. Your friend's outstretched hands are at distance d = 1.40 m above the ground (see the figure). (a) What is the speed of the book when it reaches her hands? (b) If we substituted a second book with twice the mass, what would its speed be when it reaches her hands? (c) If, instead, the book were thrown down with initial speed 4.90 m/s, what would be the answer to (a)? (田 (田 (a) Number Units (b) Number i Units (c) Number Units

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter8: Potential Energy And Conservation Of Energy

Section: Chapter Questions

Problem 8CQ: A bottle rocket is shot straight up in the air with a speed 30 m/s. if the air resistance is...

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