Does it pull to one side all the time, or only under certain circumstances, e.g. when you brake? If it's all the time then it could be uneven tyre wear, uneven tyre pressures, dragging brakes, worn suspension components, bad tracking, etc.
Breaks , tracking
why does my car pull to the right when accelerating and pulles to the left when easy off acceleration
Assuming I understand your question: The brakes are worn on one side because they are only or primarily working on that side. This should cause the car to pull toward that side when braking.
Poor tire alignment.
The brakes got wet.
You probably need your front end aligned.
The one inside the car is on the passenger side. Open the door and it is on the side of the dash, pull to remove. The one under the hood is under the hood in the back on the left side.
amount of force or gravity pulling on it
If the muscle is too tight. Or if you have a squint. Usually this is picked up at the early checks for babies and toddlers.
The specific gravitational pull from the moon, which is why there is a "low" and "high" tide. As the earth rotates, the moon appears closer to one side, making the tides "high" and the other side of the earth "low."
In the engine compartment are 2 dip sticks. One going to the engine and one to the transmission. Pull out the one for the transmission and read what it says. Nearly all transmissions want the car running, warm and in park. The dip stick usually states this on the side. If these requirements are on the side or nothing different from that, then pull it out clean it off and then reinsert it. Pull it out quickly and check the level.
If your car's tires are out of balance it will usually cause a vibration or thumping. If your wheel alignment is out it will usually cause the car to pull to one side.