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The linear speed of the helicopter blade is 33.51 m.

Tangential or linear speed of the blade

The tangential speed of the helicopter blade is calculated as follows;

v = ωr

where;

  • ω is angular speed in radian per second
  • r is the radius of the circular path

ω  = 80 rev/min

ω = 80 x 2π rad/rev x 1 min/60s

ω = 8.378 rad/s

v =  8.378 rad/s x 4 m

v = 33.51 m

Thus, the linear speed of the helicopter blade is 33.51 m.

Learn more about linear speed here: https://brainly.com/question/15154527

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The complete question is below:

Find the tangential speed of the helicopter's blade.

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