Visualizing Related Rates/Optimization problem

  • Thread starter Thread starter Painguy
  • Start date Start date
Click For Summary
The discussion revolves around a problem involving the dimensions of a rectangular swimming pool with specific deck requirements. The pool has an area of 3200 square feet, with 5-foot decks on the sides and 10-foot decks at the ends. A participant expresses confusion about the concept of a pool deck and requests a visual representation to aid in understanding. Other participants clarify that the deck acts as a border around the pool, which is essential for solving the problem. The conversation emphasizes the need for clear visualization to approach the optimization of the property dimensions.
Painguy
Messages
118
Reaction score
0

Homework Statement



A rectangular swimming pool is to be built with an area of 3200 square feet. The owner wants 5-foot wide decks along either side and 10-foot wide decks at the two ends. In this problem you will find the dimensions of the smallest piece of property on which the pool can be built satisfying these conditions.

My main problem is that I have no idea what a pool deck is( The last time I swam in a pool was 6 years ago, I prefer the beach :P), and therefore have no idea how to visualize it in order to come up with an equation to solve the problem with. If someone could be generous enough to give a topdown 2d diagram I'd appreciate that

Homework Equations





The Attempt at a Solution



Would it look like this?

nYQXN.png
 
Physics news on Phys.org
Painguy said:

Homework Statement



A rectangular swimming pool is to be built with an area of 3200 square feet. The owner wants 5-foot wide decks along either side and 10-foot wide decks at the two ends. In this problem you will find the dimensions of the smallest piece of property on which the pool can be built satisfying these conditions.

My main problem is that I have no idea what a pool deck is( The last time I swam in a pool was 6 years ago, I prefer the beach :P), and therefore have no idea how to visualize it in order to come up with an equation to solve the problem with. If someone could be generous enough to give a topdown 2d diagram I'd appreciate that

Homework Equations





The Attempt at a Solution



Would it look like this?

nYQXN.png

Think of a pool deck as a border surrounding the pool, so you want a 5 ft border on each side and a 10 ft border at each end.

RGV
 
Ray Vickson said:
Think of a pool deck as a border surrounding the pool, so you want a 5 ft border on each side and a 10 ft border at each end.

RGV

OgCVP.png

Like that?
 
Painguy said:
OgCVP.png

Like that?

That's what I said, so yes.

RGV
 
Question: A clock's minute hand has length 4 and its hour hand has length 3. What is the distance between the tips at the moment when it is increasing most rapidly?(Putnam Exam Question) Answer: Making assumption that both the hands moves at constant angular velocities, the answer is ## \sqrt{7} .## But don't you think this assumption is somewhat doubtful and wrong?

Similar threads

  • · Replies 6 ·
Replies
6
Views
3K
  • · Replies 2 ·
Replies
2
Views
4K
Replies
4
Views
3K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 1 ·
Replies
1
Views
8K
Replies
3
Views
7K
  • · Replies 16 ·
Replies
16
Views
10K
Replies
1
Views
2K
  • · Replies 10 ·
Replies
10
Views
3K
  • · Replies 3 ·
Replies
3
Views
4K