17. What is the vector sum of a vector A with magnitude 8 at 60°, and vector B with magnitude 4 at 150° a) Magnitude = 12; direction = 86° b) Magnitude = 9; direction = 86° c) Magnitude = 9; direction...

how do I solve these two questions?

Extracted text: 17. What is the vector sum of a vector A with magnitude 8 at 60°, and vector B with magnitude 4 at 150° a) Magnitude = 12; direction = 86° b) Magnitude = 9; direction = 86° c) Magnitude = 9; direction = 60° d) Magnitude = 9; direction = 150° e) Magnitude = 9; direction = 210° 18 Vou travel northeast Ge 45°) at 2.0 m/s for 10 s Then vou travel southeast (ie 45°) at the


Extracted text: 18. You travel northeast (i.e. 45°) at 2.0 m/s for 10 s. Then you travel southeast (i.e, -45°) at the same speed for 20 s. What is your position relative to your starting point? a) 42i - 7.1j b) 42i + 42j c) -42i - 14j d) -14i + 14j e) 42i - 14j