a) A velocity vector of 10 m/s is directed at 30 above the positive X-axis. what is the magnitude of its y component? b) if vector has components 3.0 m east and 4.0 m north. what is the vector's magnitude and direction? c) A soccer ball is kicked with a velocity of 10 m/s at 60 degree angle above the ground. what is the vertical component of the ball's velocity when it leaves the ground? d) A boat with an engine speed of 12 m/s directs its motion street east across the river that is flowing south at 3 m/s. what is the resultant speed and direction of the boat's path