There is a question in my lab, asking "describe an area of modern Applied Physics where the lack of friction is a serious disadvantage." I am not really sure what they are asking. Can someone please help me out? Thanks!
Homework Statement
Vector A is 4.00 units and 40* below x-axis. Vector B is 3.00 units and 25* below -x-axis. Use the graphical method (only ruler and protractor) to find Vector 2B - Vector A. I have to find the magnitude and direction.
When I did it I got 8.5 and East, but I'm not sure...
Homework Statement
vector A: ------>
vector B; <----------
choices are:
A) Vector A-vector B
B) A-B
C) Vector B-vector A
D) B-A
E) Vector A + vector B
F) A+B
G) |vector B- Vector A|
I think the answer is D, but I am not sure. Also I think there is more than one answer. Can...