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taurus [48]
3 years ago
14

A wheel with rotational inertia i is mounted on a fixed, frictionless axle. the angular speed ω of the wheel is increased from z

ero to ωf in a time interval t. what is the average net torque τ on the wheel during this time interval?
Physics
1 answer:
Annette [7]3 years ago
4 0
According to Newton's second law:
τ = Iα, where I is the moment of inertia and α is the angular acceleration.
Angular acceleration can be written as:
α = (ωf - ωi) / t
α = ωf/t

Substituting into the second law:
τ = Iωf/t
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