The following table shows the distance from the sun of some unknown planets of equal mass. Distance from sun
Planet Distance from sun
W 1.5 AU
X 0.723 AU

Which of the following best explains which planet revolves at a faster speed?

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