Word problems on vectors  Vectors
Word problems on vectors
Lessons
Notes:
• Magnitude of a vector: $ \vec{v} = \sqrt{v_x^2 + v_y^2}$

2.
Finding Displacement Using Vectors
Kevin brings his dog to a park. He throws two balls for his dog to catch. The path of the first ball is described by the vector $v_1=130i+10j$ and that of the second ball is described by the vector $v_2=80i+(40)j$ where the distances are all expressed in meters. 
3.
Evaluating Velocity Using Vectors
Elaine can swim in still water (no current) with a speed of 5 m/s. She now goes swimming in a river which has a current flowing towards west with a speed of 2 m/s. Assuming her speed is the same, 
4.
Determining Displacement and Velocity Using Vectors
A plane is travelling south with a speed of 140 km/h. Simultaneously, there is a steady wind blowing due west with a speed of 40 km/h.