Final answer:
The magnitude of the vector is 365m.
Step-by-step explanation:
To find the magnitude of a vector, you can use the formula: magnitude = sqrt(x^2 + y^2). In this case, the x component is 120m and the y component is 345m. Plugging these values into the formula, we get: magnitude = sqrt((120m)^2 + (345m)^2) = sqrt(14400m^2 + 119025m^2) = sqrt(133425m^2) = 365m.
Therefore, the magnitude of the vector is 365m.