Which riders are on the outside of the propeller?

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Multiple Choice

Which riders are on the outside of the propeller?

Explanation:
The main idea is how rotation works: at the same rotation rate, every point on the blade shares the same angular velocity, but linear speed grows with radius. So points farther from the center move faster than those near the hub. The outer edge has the greatest radius, so the riders located there are the ones on the outside. In this case, CP's are the riders at the outer edge, matching that outer position. The other labeled riders would be closer to the hub, inside the blade, and thus not on the outside.

The main idea is how rotation works: at the same rotation rate, every point on the blade shares the same angular velocity, but linear speed grows with radius. So points farther from the center move faster than those near the hub. The outer edge has the greatest radius, so the riders located there are the ones on the outside. In this case, CP's are the riders at the outer edge, matching that outer position. The other labeled riders would be closer to the hub, inside the blade, and thus not on the outside.

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