Question

The propeller blades on a submarine have a radius of 6 feet. At full speed, they turn at 120 revolutions per minute. What is the angular velocity, in radians per minute, at the tip of the blade? Round your answer to the nearest hundredth.

Answer 1

Using proportions, it is found that the angular velocity at the tip of the blade is of 753.98 radians per minute.

What is a proportion?

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

Each revolution has $2\pi$ radians, hence in one minute, the 120 revolutions will have a measure in radians of:

M = 120 x 2pi = 240pi = 753.98

Hence the angular velocity is of 753.98 radians per minute.

More can be learned about proportions at https://brainly.com/question/24372153

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