7.4. A 72.0-kg swimmer jumps into the old swimming hole from a diving board 3.25 m above the water. Use energy conservation to find his speed just he hits the water (a) if he just holds his nose and drops in, (b) if he bravely jumps straight up (but just beyond the board!) at 2.50 m/s, and (c) if he manages to jump downward at 2.50 m/s.
7.4. A 72.0-kg swimmer jumps into the old swimming hole from a diving board 3.25 m above the water. Use energy conservation to find his speed just he hits the water (a) if he just holds his nose and drops in, (b) if he bravely jumps straight up (but just beyond the board!) at 2.50 m/s, and (c) if he manages to jump downward at 2.50 m/s.
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 11CQ: Consider the following scenario. A car for which friction is not negligible accelerates from rest...
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![7.4. A 72.0-kg swimmer jumps into the old swimming hole from a
diving board 3.25 m above the water. Use energy conservation to
find his speed just he hits the water (a) if he just holds his nose and
drops in, (b) if he bravely jumps straight up (but just beyond the
board!) at 2.50 m/s, and (c) if he manages to jump downward at
2.50 m/s.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F60fdd5b9-8b98-46af-8fac-7f118ccd0829%2F7620d59a-d7ff-42fa-b4d4-62eb87d49a20%2Fbry46dm_processed.jpeg&w=3840&q=75)
Transcribed Image Text:7.4. A 72.0-kg swimmer jumps into the old swimming hole from a
diving board 3.25 m above the water. Use energy conservation to
find his speed just he hits the water (a) if he just holds his nose and
drops in, (b) if he bravely jumps straight up (but just beyond the
board!) at 2.50 m/s, and (c) if he manages to jump downward at
2.50 m/s.
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