Physics: Principles with Applications
Physics: Principles with Applications
6th Edition
ISBN: 9780130606204
Author: Douglas C. Giancoli
Publisher: Prentice Hall
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Chapter 8, Problem 54P
To determine

To Find: Angular speed of the diver.

Expert Solution & Answer
Check Mark

Answer to Problem 54P

Angular speed of the diver is 0.381rev/s .

Explanation of Solution

Given Information:

Number of rotations is 2.0

Time taken is 1.5s

Moment of inertia of straight position is = 3.5 of tuck position.

Concept used:

Here, angular momentum is conserved

So, Ltuck=Lstraight

As L=Iω

So, Ituckωtuck=Istraightωstraight

Here,

  L is the angular momentum,

  Ituck is the moment of inertia in tuck position,

  Istraight is the moment of inertia in straight position,

  ωtuck is the angular velocity in tuck position.

  ωstraight is the angular velocity in straight position.

Calculation:

As,

  Ituckωtuck=Istraightωstraight

Thus,

  ωstraight=ωtuckItuckIstraight=(2.0rev1.5s)(Ituck3.5Ituck)=0.381rev/s

So, the angular speed of the diver is 0.381rev/s .

Chapter 8 Solutions

Physics: Principles with Applications

Ch. 8 - The moment of inertia of a rotating solid disk...Ch. 8 - Two inclines have the same height but make...Ch. 8 - Two spheres look identical and have the same mass....Ch. 8 - A sphere and a cylinder have the same radius and...Ch. 8 - Prob. 15QCh. 8 - Prob. 16QCh. 8 - Prob. 17QCh. 8 - 15. Can the diver of Fig. 8-28 do a somersault...Ch. 8 - Prob. 19QCh. 8 - When a motorcyclist leaves the ground on a jump...Ch. 8 - Prob. 21QCh. 8 - 18. The angular velocity of a wheel rotating on a...Ch. 8 - 19. In what direction is the Earth's angular...Ch. 8 - 20. ‘On the basis of the law of conservation of...Ch. 8 - Prob. 1PCh. 8 - Prob. 2PCh. 8 - Prob. 3PCh. 8 - Prob. 4PCh. 8 - Prob. 5PCh. 8 - Prob. 6PCh. 8 - Prob. 7PCh. 8 - Prob. 8PCh. 8 - Prob. 9PCh. 8 - Prob. 10PCh. 8 - Prob. 11PCh. 8 - Prob. 12PCh. 8 - Prob. 13PCh. 8 - Prob. 14PCh. 8 - Prob. 15PCh. 8 - Prob. 16PCh. 8 - Prob. 17PCh. 8 - Prob. 18PCh. 8 - Prob. 19PCh. 8 - Prob. 20PCh. 8 - Prob. 21PCh. 8 - Prob. 22PCh. 8 - Prob. 23PCh. 8 - Prob. 24PCh. 8 - Prob. 25PCh. 8 - Prob. 26PCh. 8 - Prob. 27PCh. 8 - Prob. 28PCh. 8 - Prob. 29PCh. 8 - Prob. 30PCh. 8 - Prob. 31PCh. 8 - Prob. 32PCh. 8 - Prob. 33PCh. 8 - Prob. 34PCh. 8 - Prob. 35PCh. 8 - Prob. 36PCh. 8 - Prob. 37PCh. 8 - Prob. 38PCh. 8 - Prob. 39PCh. 8 - Prob. 40PCh. 8 - Prob. 41PCh. 8 - Prob. 42PCh. 8 - Prob. 43PCh. 8 - Prob. 44PCh. 8 - Prob. 45PCh. 8 - Prob. 46PCh. 8 - Prob. 47PCh. 8 - Prob. 48PCh. 8 - Prob. 49PCh. 8 - Prob. 50PCh. 8 - Prob. 51PCh. 8 - Prob. 52PCh. 8 - Prob. 53PCh. 8 - Prob. 54PCh. 8 - Prob. 55PCh. 8 - Prob. 56PCh. 8 - Prob. 57PCh. 8 - Prob. 58PCh. 8 - Prob. 59PCh. 8 - Prob. 60PCh. 8 - Prob. 61PCh. 8 - Prob. 62PCh. 8 - Prob. 63PCh. 8 - Prob. 64PCh. 8 - Prob. 65PCh. 8 - Prob. 66PCh. 8 - Prob. 67PCh. 8 - Prob. 68GPCh. 8 - Prob. 69GPCh. 8 - Prob. 70GPCh. 8 - Prob. 71GPCh. 8 - Prob. 72GPCh. 8 - Prob. 73GPCh. 8 - Prob. 74GPCh. 8 - Prob. 75GPCh. 8 - Prob. 76GPCh. 8 - Prob. 77GPCh. 8 - Prob. 78GPCh. 8 - Prob. 79GPCh. 8 - Prob. 80GPCh. 8 - Prob. 81GPCh. 8 - Prob. 82GPCh. 8 - Prob. 83GPCh. 8 - Prob. 84GPCh. 8 - Prob. 85GPCh. 8 - Prob. 86GP
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