A velocity-time graph is shown below: (2 points) What is the average acceleration of the object represented in the graph above over the 10 seconds?
0 m/s2
2 m/s2
4 m/s2
6 m/s2

5points ! is potential chemical energy always transformed into kinetic

Explain vector addition, triangle method and parallelogram method

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?