You drop a 1.60 kg book to a friend who stands on the ground at distance D = 10.0m below. Your friend's outstretched hands are at distance d = 1.30m 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 7.00 m/s, what would be the answer to (a)? %3D
You drop a 1.60 kg book to a friend who stands on the ground at distance D = 10.0m below. Your friend's outstretched hands are at distance d = 1.30m 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 7.00 m/s, what would be the answer to (a)? %3D
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter7: Conservation Of Energy
Section: Chapter Questions
Problem 20P: As shown in Figure P7.20, a green bead of mass 25 g slides along a straight wire. The length of the...
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