Polar Coordinates: Area: Example 3: Cow Grazing Area: Method 2

In this video I go over the same “cow grazing area” problem in which a cow (or goat or other farmyard animal) is tied to a circular silo and we are asked to determine the total area in which the cow can graze around. But this time I go over another method in solving this problem, Method 2, and show break the area under the involute curve of the circle into infinite sectors of a circle, which we can sum up as an integral. This method is actually much easier than in the parametric equations used in Method 1, and saves plenty of time too. This integration method is based on the area formula that I derived in my earlier video for the area of a polar curve. The only difference is that instead of having a direct formula for the involute curve, we can simply project the angle of a sector of a circle perpendicularly towards the involute because we know the length of the rope. This is actually an ingenious method in solving the grazing area problem and shows that complex problems can be solved easily with a thorough understanding of mathematics. The difference in the amount of work required in both Method 1 and Method 2 also show how certain techniques are better suited than others in certain situations, which illustrates the remarkable flexibility of calculus, so make sure to watch both methods!


Watch Video On:

  • 3Speak:
  • BitChute:
  • DTube:
  • YouTube:

Download PDF Notes: https://1drv.ms/b/s!As32ynv0LoaIhvV-EUB2O3mB0v8-SA


View Video Notes Below!


Download these notes: Link is in video description.
View these notes as an article: @mes
Subscribe via email: http://mes.fm/subscribe
Donate! :) https://mes.fm/donate
Buy MES merchandise! https://mes.fm/store
More links: https://linktr.ee/matheasy

Reuse of my videos:

  • Feel free to make use of / re-upload / monetize my videos as long as you provide a link to the original video.

Fight back against censorship:

  • Bookmark sites/channels/accounts and check periodically
  • Remember to always archive website pages in case they get deleted/changed.

Recommended Books:

Subscribe to MES Truth: https://mes.fm/truth

Join my forums!

Follow along my epic video series:


NOTE #1: If you don't have time to watch this whole video:

  • Skip to the end for Summary and Conclusions (if available)
  • Play this video at a faster speed.
    -- TOP SECRET LIFE HACK: Your brain gets used to faster speed!
    -- MES tutorial: @mes/play-videos-at-faster-or-slower-speeds-on-any-website
  • Download and read video notes.
  • Read notes on the Hive blockchain #Hive
  • Watch the video in parts.
    -- Timestamps of all parts are in the description.

Browser extension recommendations:


Polar Coordinates Area Example 3 Cow Grazing.jpeg

Example

A Cow is tied to a silo with radius r by a rope just long enough to reach the opposite side of the silo.

Find the area available for grazing by the cow.

Solution

image.png

H2
H3
H4
3 columns
2 columns
1 column
4 Comments
Ecency