In 100 words or less, explain the motion with regards to the reference point. Next, explain what you notice about the slope of the line in this trial? Is it possible to find it using the simple slope equation. Why or why not?

Which body is in equilibrium? (1) a satellite orbiting earth in a circular orbit (2) a ball falling freely toward the surface of earth (3) a car moving with a constant speed along a straight, level road (4) a projectile at the highest point in its trajectory