MHB 2.7.2 AP Calculus Exam .... distance traveled estimate

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The discussion centers on estimating the distance traveled in a 2.7.2 AP Calculus Exam problem. A participant calculated the distance by counting squares on a graph, determining that there are approximately 21 squares. Each square represents 10 feet, leading to a total distance estimate of 210 feet. The method of counting squares is confirmed as a valid approach for this type of problem. This straightforward calculation illustrates a practical application of graphical interpretation in calculus.
karush
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ok all I did was count squares so about 21
 
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karush said:
ok all I did was count squares so about 21

every square represents 10 ft, so 21 times 10 ft ?
 
210:cool:
 
Thread 'Problem with calculating projections of curl using rotation of contour'

Thread 'Problem with calculating projections of curl using rotation of contour'

Hello! I tried to calculate projections of curl using rotation of coordinate system but I encountered with following problem. Given: ##rot_xA=\frac{\partial A_z}{\partial y}-\frac{\partial A_y}{\partial z}=0## ##rot_yA=\frac{\partial A_x}{\partial z}-\frac{\partial A_z}{\partial x}=1## ##rot_zA=\frac{\partial A_y}{\partial x}-\frac{\partial A_x}{\partial y}=0## I rotated ##yz##-plane of this coordinate system by an angle ##45## degrees about ##x##-axis and used rotation matrix to...
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