December 18, 2014

Homework Help: science (physics) Need to solve this today please

Posted by ~christina~ on Saturday, September 29, 2007 at 8:01am.

(a) Express the vectors A, B, and C in the figure below in terms of unit vectors.

(b) Use unit vector notation to find the vectors R = A + B + C and S = C A B.

(c) What are the magnitude and directions of vectors R and S?

Well the picture goes and has a vector
A pointing in the 1st quadrant of the graph and between the y axis it has a angle of 37 deg
and a magnitude of 12m

vector B is in the 4th quadrant and the angle from the x axis to the vector is 40 deg
and a magnitude of 15m

vector C is in the 3rd quadrant and measured from the x axis it's angle is 60 deg
and a magnitude of 6.0m

~What are unit vectors? Would that just refer to the m? And does that include the i, j, and k hat? (i [^ on top of i])

How would I find these? like for C it has the angle of 60 deg from the x axis in the 3rd quadrant but if I was finding the x component of C I wouldn't use 60 right for the angle but rather 180+60 = 240 deg.
I'm not sure if that's correct but that has gotten me confused with unit vector.

And for the B vector in the 4th quadrant wouldn't I find the x and y component using not 40 deg but rather -40 deg?

I really need to solve this by today...

Answer this Question

First Name:
School Subject:

Related Questions

AP Physics - Consider the vectors A = 2.00 i + 7.00 j and B = 3.00 i - 2.00 j. (...
vectors - Given the vectors v=-2i+5j and w=3i+4i, determine (do I just plug what...
Math: Vectors - Find any vector w that is perpendicular to both vector "u = 3j...
Mamthematics - Vectors - a) If vector u and vector v are non-collinear vectors ...
physics multiplying vectors - n the product F = qv B , take q = 4, = 2.0i + 4....
college physics - Given the vectors = 2.00 + 8.00 and = 4.00 - 5.00, do the ...
physics - Suppose vector A=3i-2j, B= -i-4j and vector C are three vectors in xy ...
Math - vectors - In the product F(vector)=q(V(vector)xB(vector), take q = 4, V(...
physics - Vector A is given by A = c x + 6 y, and vector B is given by B = 4.8 x...
Physics - An electron's position is given by r = 2.00t i - 7.00t2 j + 5.00 k, ...