Uniform Circular Motion: a Wind Farm Generator Uses a Two-Bladed

question 9

Essay

Uniform circular motion: A wind farm generator uses a two-bladed propeller (see figure) mounted on a pylon at a height of 20 m. The length of each propeller blade is 12 m. A small piece from the tip of the propeller breaks off when the propeller is vertical. At that instant, the period of the motion of the propeller is 1.2 s. The fragment flies off horizontally, falls with negligible air resistance, and strikes the ground at P.
(a) How far is point P from the base of the pylon?
(b) At what angle with respect to the vertical is the fragment moving just as it strikes the ground at P?

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Definitions:

Object Permanence

Object permanence is the understanding that objects continue to exist even when they cannot be seen, heard, or touched, typically developing in infants around 8 months of age.

Attachment

A deep and enduring emotional bond that connects one person to another across time and space, often discussed in the context of child development.

Critical Periods

Critical periods are specific time windows during the development of an organism when it is particularly sensitive to certain environmental stimuli, determining the development of specific functionalities or characteristics.

Mother-Infant Attachment

The emotional bond that develops between a mother and her baby, facilitating the child's physiological and psychological development and security.