A windmill for generating electricity has a blade that is 30 feet long. Depending on the wind, it rotates at various velocities. Find the angular velocity in rad/sec for the tip of the blade if the windmill is rotating at a rate of 55 comma 145 rev/day.

The angular velocity is 0.40090415 rad/sec.

Explanation:

Given that,

Height = 30 feet

Rotating rate =55,145 rev/day

We need to calculate the angular velocity

So,

Hence, The angular velocity is 0.40090415 rad/sec.

the working equation for the angular size is the product of the physical size and 360 degrees divided by the product of two pi and distance from earth. the minimum size would be 0.559 degrees while the maximum size would be 0.49 degrees.