Yes, put the three vectors in a plane, with a separation of 120 degrees between each vector and each of the other vectors.
yes
Yes. If the two vectors are two sides of an equilateral triangle, then the resultant is the third side and therefore equal in magnitude.
By all means. Using Newton's third law (f=ma) Multiply the vectors by 0 and you're home
69 degrees
If they are equal in magnitude but act in opposite directions.
Let two equal magnitude vectors be 'X'.. Then, resultant=1.414X
if you add the vectors magnitude and equal to resultant the angle between them is 0
yes
Yes. If the two vectors are two sides of an equilateral triangle, then the resultant is the third side and therefore equal in magnitude.
Yes. A vector has magnitude and direction. If the vectors have equal magnitude and directly opposite directions their sum will be zero.
By all means. Using Newton's third law (f=ma) Multiply the vectors by 0 and you're home
69 degrees
Yes. This will happen if the two vectors are at an angle of 120 degrees.
If they are equal in magnitude but act in opposite directions.
Two - if you add two vectors of equal magnitude but in opposite directions, the resultant vector is zero.
Yes, it can.A simple example as when two vectors of the same magnitude act at an angle of 120 degrees to one another.
The zero-vector has no direction.