I Review I ConstantsYou are designing a rotating metal flywheel that will be used tostore energy. The flywheel is to be a uniform disk with radius35.0 cm. Starting from rest at t = 0, the flywheel rotates withconstant angular acceleration 3.00 rad/s? about an axisperpendicular to the flywheel at its center.Part AIf the flywheel has a density (mass per unit volume) of 8600 kg/m³, what thickness must it have to store 800 J of kinetic energy at t = 8.00 s?Express your answer with the appropriate units.HAh =ValueUnitsSubmitRequest Answer

The disc starts rotating from rest with a uniform angular acceleration. Using newtons rotational…

Answered: If the flywheel has a density (mass per…

If the flywheel has a density (mass per unit volume) of 8600 kg/m, what thickness must it have to store 800 J of kinetic energy at t = 8.00 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

Chapter11: Angular Momentum

Section: Chapter Questions

Problem 49P: The blades of a wind turbine are 30 m in length and rotate at a maximum rotation rate of 20 rev/min....

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Question

I Review I Constants
You are designing a rotating metal flywheel that will be used to
store energy. The flywheel is to be a uniform disk with radius
35.0 cm. Starting from rest at t = 0, the flywheel rotates with
constant angular acceleration 3.00 rad/s? about an axis
perpendicular to the flywheel at its center.
Part A
If the flywheel has a density (mass per unit volume) of 8600 kg/m³, what thickness must it have to store 800 J of kinetic energy at t = 8.00 s?
Express your answer with the appropriate units.
HA
h =
Value
Units
Submit
Request Answer

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Step 1 Determine the angular velocity of the disc

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Step 2 Determine the moment of Inertia of the flywheel

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Step 3 Determine the mass of the disc

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Step 4 Determine the thickness of the disc from the volume of the disc

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