Think for a moment about mars. It's small, but it's travelling slower than Earth. The rules of centrifugal force means that it has significantly less than Earth therefore. Gravity increases the speed of an object the longer it is acting on it, I believe exponentially. Therefore, Mars should either be speeding toward the sun right now or at least in front of Earth.
Think about the moons orbiting Jupiter. The force of gravity from the Sun is strong enough to pull Jupiter to keep it from moving away, and yet it isn't strong enough to pull the moons from out of orbit? Why not? They are revolving around the sun at about the same speed as Jupiter, but they are much smaller. You might think of how distance makes gravity's pull stronger and Jupiter is closer; however, the pull of the sun is strong enough to hold the entire planet of Jupiter at that distance. I would be surprised that it wasn't strong enough to pull the moons out of orbit, but I don't have the science calculated to back that up. Regardless, you can see that there are planets that are bigger and traveling faster than planets smaller and traveling slower. Why is the exponentially increasing pull of gravity seemingly not having an affect on our planetaury solar system?
Ok, so we know that gravity makes heavy and light objects fall at the same speed. However, I would question why. Why does it defy the law of inertia? With some careful logic, I could theorize that gravity pulls on every particle at the same rate, so heavier objects with more particles simply get more gravitational force pulling them, defying inertia. Except... why would it defy inertia unless it was pulling stronger and faster. Therefore, heavier planets should have a faster and stronger pull, thereby needing more speed to counteract by centrifugal force. This is not the case with the planets in our solar system.
To make matter even more confusing, there are some particles that float like hydrogen and helium. We could deduce that it could be displacement causing this, perhaps, but I thought gravity acted equally pulling just as fast on every particle. Why then would one particle be displaced?
