Unformatted text preview: Confusing force and position vectors. Using θ = tan − 1 F y F x Λ Ν Μ Μ Ξ Π Ο Ο instead of α , β , and γ in 3D. Ex: Forgetting to normalize the unit vector.  3 Wrong equation Ex: Forgetting to square the magnitude components under the root sign.  5 Returning a vector answer for a dot product calculation. For incomplete work give the points commensurate with the percentage of the overall work done. Example: If a 35 point problem has 7 steps and they complete 2 of the steps, give them 10 points. Don't take off more than what the problem is worth! Make sure they end up with at least 5 points for trying on an exam and 2 points for trying on a homework problem. (If they did try . . .) Homework Only For work too messy, small, etc, grade, but return to the student to resubmit a better copy before recording. Zero for the whole assignment if the ‘correct’ answer follows from incorrect math....
View
Full Document
 Winter '12
 StephanieAllredMagleby
 Addition, Dot Product, ex, FBD, Incorrect FBD Ex

Click to edit the document details