The angular momentum of a flywheel having a rotational inertia of 0.144 kg-m² about its central axis decreases from 6.40 to 0.160 kg•m²/s in 1.40 s. (a) What is the magnitude of the average torque acting on the flywheel about its central axis during this period? (b) Assuming a constant angular acceleration, through what angle does the flywheel turn? (c) How much work is done on the wheel? (d) What is the magnitude of the average power done on the flywheel? (a) Number 4.456 Units N-m (b) Number 31.894 Units rad (c) Number i 142.12 Units (d) Number 101.51 Units
The angular momentum of a flywheel having a rotational inertia of 0.144 kg-m² about its central axis decreases from 6.40 to 0.160 kg•m²/s in 1.40 s. (a) What is the magnitude of the average torque acting on the flywheel about its central axis during this period? (b) Assuming a constant angular acceleration, through what angle does the flywheel turn? (c) How much work is done on the wheel? (d) What is the magnitude of the average power done on the flywheel? (a) Number 4.456 Units N-m (b) Number 31.894 Units rad (c) Number i 142.12 Units (d) Number 101.51 Units
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Transcribed Image Text:The angular momentum of a flywheel having a rotational inertia of 0.144 kg-m? about its central axis decreases from 6.40 to 0.160
kg-m2/s in 1.40 s. (a) What is the magnitude of the average torque acting on the flywheel about its central axis during this period? (b)
Assuming a constant angular acceleration, through what angle does the flywheel turn? (c) How much work is done on the wheel? (d)
What is the magnitude of the average power done on the flywheel?
(a) Number
4.456
Units
N-m
(b) Number
31.894
Units
rad
(c) Number
i
142.12
Units
J
(d) Number
101.51
Units
w
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