Consider the vector field F = = (x + y)i+ (x² + y² )j. What is the downward flux across the line segment from (0, 0) to (–3, 0)? (a) For (F · N) ds, r(t) = <-3t,0> E for 0

Calculus: Early Transcendentals
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Chapter1: Functions And Models
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Consider the vector field F = (x + y)i + (x² + y )j. What is the downward flux across the line segment from (0, 0) to (-3, 0)?
(a) For
(F · N) ds,
r(t) :
<-3t,0>
E for 0 <t < 1.
F(r(t))
-3ti+9t^2j
Σ
N =
Oi-3j
Σ
ds =
Σ dt .
(b) And so,
(F · N) ds =| -27
Σ
C
Transcribed Image Text:Consider the vector field F = (x + y)i + (x² + y )j. What is the downward flux across the line segment from (0, 0) to (-3, 0)? (a) For (F · N) ds, r(t) : <-3t,0> E for 0 <t < 1. F(r(t)) -3ti+9t^2j Σ N = Oi-3j Σ ds = Σ dt . (b) And so, (F · N) ds =| -27 Σ C
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