A airplane is traveling 15 meters per second at 75 degrees North of East. If the airplane traveled for 30 seconds, how far East did it move?

Velocity is a description of both speed and direction, therefore it - a vector - a force arrow - the same as acceleration - a magnitude

You are traveling in a car going at a constant speed of 100km/h down a long, straight highway. you pass another car going in the same direction which is traveling at a constant speed of 80km/h. as measured from your car's reference frame this other car is traveling at −20km/h. what is the acceleration of your car as measured from the other car's reference frame? what is the acceleration of the other car as measured from your car's reference frame?

For waves in the ocean, the medium of the waves is a. air b. water c. energy d. a passing boat