Question

nitude and direction of B 2. Vector A has a magnitude of 8.00 units and makes an angle of 45.0° with the positive x-axis. Vector B also has a magnitude of 8.00 units and is directed along the negative xaxis. Using graphical methods, find (a) the vector sum A B and (b) the vector difference A B. 3. Vector A is 3.00 units in length and points along the positive x-axis. Vector B is 4.00 units in length and points along the negative y-axis. Use graphical meth- ods to find the magnitude and direction of the vec- tors (a) A B and (b) A B 4. QC Three displacements are A 200 m due south, B 250 m due west, and C 150 m at 30.0° east of north. (a) Construct separate diagram for each the following possible ways of adding these vectors: (b) Explain what you can conclude from comparing the diagrams. 5. A roller coaster moves 200 ft horizontally and then rises 185 ft at an angle of 30.0e above the horizontal. Next, it travels 135 ft at an angle of 40.0 below the horizontal. Use graphical techniques to find the roller coaster's displacement from its starting point to the end of this movement. 6. QC An airplane flies 200 km due west from city A f 900

can someone please help me with 2-5? I want to make sure I have them done correctly. I have to do well in this class.
thank you

Answer 1

Solution

2.

A+ B 1

分贝 4

A-B