physics (cross product vectors)
posted by steve .
Two vectors are lying in the xz plane: A=2.00i + 3.00k and B= 9.00i + 2.00k.
a) What is the value of AxB?
Check my solution: I found through calculations that the value is 23j.
b) What is the magnitude AxB?
I could do ABsin theta, but I have no angle between. So am confused here.
C) What is the ganle between the two vectors.
Here I could do the:
23
 = sin theta.
AB
Please help. I really would like to know this concept before class today in about 1 hr. Check all my answers, please.
Thank you!
(2.00i + 3.00k)(9.00i + 2.00k)
ixi=0
ixk= j
kxi=j
from that, 4(j) + 27(j)
magnitude: (sqrt (4^2 + 27^2))
angle between vectors?
arc sin=magnitudeabove/magnitudeA*magnitudeB
I'm still somewhat confused. Does 4(j) + 27(j) equal 31j?
also, if you can, please elaborate a bit more on proper steps to conceptualize prob(the rest).
yes, I got 31j
if the cross product is equal to magnitude A * magnitude B * sinTheta, then
crossproduct/(magnitudeA*MagnitudeB)= sinTheta.
Solve for Theta.
Respond to this Question
Similar Questions

PHYSICS VECTORS
1. The problem statement, all variables and given/known data Find the vector product of Vector A cross Vector B(expressed in unit vectors) of the two vectors. What is the magnitude of the vector product? 
12th grade
prove that normal to plane containing 3 points whose position vectors are a vector,b vector,c vectorlies in direction addition of cross product of vectors b and c and cross product of vectors c and a and cross product of vectors a … 
Physics
Two vectors A and B have magnitude A = 3.00 and B = 3.00. Their vector product is A x B= 5.00k + 2.00i. What is the angle between A and B? 
Physics
Two vectors A. and B have magnitude A = 3.00 and B = 3.00. Their vector product is A x B= 5.00k + 2.00i. What is the angle between A and B? 
physics
Find a vector with a magnitude of 1.00 that bisects the angle between the vectors 5.00i + 11.0j and 2.00i − 1.00j. Give your answer in rectangular coordinates. Please explain how you arrived at the solution. Thanks! 
General Physics
A 0.500 kg sphere moving with a velocity (2.00i  3.50j + 1.00k) m/s strikes another sphere of mass 1.50 kg moving with a velocity (1.00i + 2.00j  2.80k) m/s. (a) If the velocity of the 0.500 kg sphere after the collision is (1.00i … 
Physics
A 0.500 kg sphere moving with a velocity (2.00i  3.50j + 1.00k) m/s strikes another sphere of mass 1.50 kg moving with a velocity (1.00i + 2.00j  2.80k) m/s. (a) If the velocity of the 0.500 kg sphere after the collision is (1.00i … 
Physics
1. Consider the two vectors P and Q. The definition of P is P = i × (i × j). The definition of Q is Q = (i × i) × j . a. The magnitude of P is equal to the magnitude of … 
Physics
2. We have two vectors that line in the xy plane. If we take the crossproduct of those two vectors we know that a. the magnitude of the crossproduct will always be equal to the product of the magnitudes of the two vectors. b. the … 
Science/physics
Two vectors A and B have magnitude A = 3.00 and B = 3.00. Their vector product is A x B= 5.00k + 2.00i. What is the angle between A and B?