If a truck has a mass of 2 x 106 grams and a velocity of 35m/s, what is its momentum? kgm/s
a. 2 million
b. 70
c. 57.14
d. 70,000
e. 57,100

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?