and part 2.) How much torque must the motor apply to bring the blades from rest up to a speed of 5.6 rev/s in 5.6 s?

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
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Chapter11: Angular Momentum
Section: Chapter Questions
Problem 72P: An ice skater is preparing for a jump with turns and has his arms extended. His moment of inertia is...
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and part 2.) How much torque must the motor apply to bring the blades from rest up to a speed of 5.6 rev/s in 5.6 s?

Let us treat a helicopter rotor blade as a long thin rod,
as shown in the figure. (Figure 1).
Figure
-3.75 m-
Rotor
1 of 1
m = 135 kg
Part A
If each of the three rotor helicopter blades is 3.75 m long and has a mass of 135 kg, calculate the
moment of inertia of the three rotor blades about the axis of rotation.
Express your answer to two significant figures and include the appropriate units.
Itotal =
Submit
Part R
μA
Value
Request Answer
Doonon
Units
?
Transcribed Image Text:Let us treat a helicopter rotor blade as a long thin rod, as shown in the figure. (Figure 1). Figure -3.75 m- Rotor 1 of 1 m = 135 kg Part A If each of the three rotor helicopter blades is 3.75 m long and has a mass of 135 kg, calculate the moment of inertia of the three rotor blades about the axis of rotation. Express your answer to two significant figures and include the appropriate units. Itotal = Submit Part R μA Value Request Answer Doonon Units ?
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