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The propeller of an airplane is 9 feet in diameter. What is the speed of the tip of a propeller blade if the angular velocity of the propeller is 50 radians per second?
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4 votes
The propeller of an airplane is 9 feet in diameter. What is the speed of the tip of a propeller blade if the angular velocity of the propeller is 50 radians per second?

User RJo
by
7.5k points

2 Answers

4 votes
1. Calculate the length of 1 full rotation 2. Calculate how much rotations per second 3. Multiply.
it's 225 feet per second
User Rijosh
by
8.0k points
1 vote
Angular velocity and linear velocity are related by the equation:
v = ωr; r is the radius
v = 50 x 9/2
v = 225 feet per second
User Markus Kasten
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8.2k points
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