Finding the Total Width of an Ellipse

  • Thread starter Thread starter princiebebe57
  • Start date Start date
  • Tags Tags
    Ellipse Width
Click For Summary
To find the total width of the ellipse given by the equation 7x^2 + 7(y-6)^2 = 6, first divide the entire equation by 7, resulting in x^2 + (y-6)^2 = 6/7. This indicates that the ellipse is centered at (0, 6) with a semi-major axis along the y-direction. The total width of the ellipse can be determined by calculating the lengths of the semi-major and semi-minor axes, which are derived from the equation parameters. The shape of the ellipse is elongated vertically, reflecting its dimensions based on the derived values. Understanding these properties is essential for visualizing the ellipse accurately.
princiebebe57
Messages
31
Reaction score
0
How do you find the total width of the ellipse given by the equation 7x^2 + 7(y-6)^2 = 6.
 
Physics news on Phys.org
Dividing by 7 gives you

x2 + (y-6)2 = 6/7 = a2 for some a

What shape does that really look like?
 
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 14 ·
Replies
14
Views
2K
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 3 ·
Replies
3
Views
1K
  • · Replies 2 ·
Replies
2
Views
3K
Replies
1
Views
1K
  • · Replies 9 ·
Replies
9
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
Replies
1
Views
1K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 4 ·
Replies
4
Views
2K