True or false a reference point is the object to which we compare another object's motion

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?

=force × distance a. work b. velocity c. pressure d. momentum

The earth exerts a gravitational force of 500 n on amy. what is amy’s mass in kg?