The problem involves three vectors A, B, and C, defined by the equations A+B = 2C and B-2A = -C, with C given as a specific vector. The original poster seeks clarification on how to determine the value of vector A based on these relationships.
The discussion is active, with participants engaging in exploring methods to combine the equations effectively. Some guidance has been offered regarding the elimination of variable B, indicating a productive direction in the conversation.
There is a mention of the challenge posed by the template's requirement for relevant equations, which some participants find awkward. The original poster's understanding of the unit vectors is noted, but it is recognized that this does not directly aid in solving the equations.
BvU said:Hi eng,
A bit awkward if the template asks for relevant eqations, right ? You still need something there. The statement that ##\hat\imath, \hat \jmath, \hat k## are unit vectors is nice to form an idea, but it doesn't help solve the equations...
If A, B and C were numbers, how would you solve A+B = 2C & B-2A = -C ?
You are looking for a relationship between A and C. So you need to combine the equations in a way which ... does what?engphys204 said:
something that eliminates the B from the equation? Subtract them?haruspex said:
Of course.engphys204 said:
ohhh thanks I got it!haruspex said: