Barney walks 4 km N and 3 km W. a) Sketch a diagram to illustrate Barney's walk. b) What distance did Barney walk? C) What is Barney's displacement? D) If the trip took 120 min, what is Barney's average speed in: i) km/min ii) km/hr E)If the trip took 120 min, what is Barney's average velocity in: i) km/min ii) km/h Answers: B) 7km C) 5km D) i) 0.058 km/min ii) 3.5 km/h E i) 0.042 km/min ii) 2.5 km/h Here are the answers I only want to know how to solve the problems