The angle of intersection between a curve and a plane

Click For Summary
SUMMARY

The discussion centers on calculating the angle of intersection between the curve defined by the vector function r(t) = (t^2+t)i + (t^3-4)j + (3-t)k and the xy-plane at the point (12, 23, 0). The angle is determined using the formula cosθ = (A × B) / ||A|| ||B||. The initial calculation yielded an incorrect angle of 0.0017 degrees, prompting a request for clarification on the vectors A and B used in the calculation.

PREREQUISITES
  • Understanding of vector calculus
  • Familiarity with vector functions and their derivatives
  • Knowledge of cross product and dot product operations
  • Basic trigonometry for angle calculations
NEXT STEPS
  • Review vector calculus concepts, particularly vector functions and their derivatives
  • Study the cross product and dot product in detail
  • Learn how to apply the angle of intersection formula in three-dimensional space
  • Practice similar problems involving curves and planes for better comprehension
USEFUL FOR

Students studying calculus, particularly those focusing on vector calculus, as well as educators and tutors assisting with homework related to curves and planes in three-dimensional geometry.

usaplasticman
Messages
2
Reaction score
0

Homework Statement



r(t)=(t^2+t)i+(t^3-4)j+(3-t)k

r(t) hits the xy plane at the point (12,23,0). Find the angle on intersection of r(t) with the xy plane at that point.

Angle=

Homework Equations



cosθ=(AxB)/lAllBl

The Attempt at a Solution



I find the answer was 0.0017 degree, but the answer was absolutely wrong...

please help me :)
 
Physics news on Phys.org
You haven't actually shown what you did. What did you use for A and B?
 

Similar threads

  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 19 ·
Replies
19
Views
3K
  • · Replies 21 ·
Replies
21
Views
4K
  • · Replies 2 ·
Replies
2
Views
1K
Replies
1
Views
2K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 2 ·
Replies
2
Views
3K