My question is how does the “Force” produced by `VectorForce`

s get translated into velocity. I am asking because I am trying to create a script that uses `VectorForce`

s to move the character around in certain ways. In order to make these forces behave in the way I’d like, I need to better understand what exactly is going on behind the scenes when I set the Force property of a `VectorForce`

.

vector3.new(1,0,0) would mean 1 stud per second on the x axis

I’m not sure exactly how Roblox does it with their systems, but if they’re basing it off of a realistic model, then an applied force gives an acceleration, not a velocity. However, these are related as acceleration is the **change** in velocity over time, meaning you can use one to find the other.

You can calculate the acceleration given by a force by using a common equation that you probably have already heard: F = ma. This means that for any object with a mass of ‘m’ and given a force ‘F’ would result in an acceleration of a.

For example: if you had an object with a mass of 5 kg and applied 15 Newtons of force you’d get an acceleration of 3 meters per second, per second.

Assuming that you have a constant force, the acceleration vs time graph will look something like the red line here:

You can calculate the velocity from this graph by finding the *area* under the red line from 0 to a given time, t. If you wanted to find the object’s velocity at 4 seconds you’d just find the area of that rectangle from the graph to the x axis, from 0 to 4 seconds, you just calculate 3 * 4 and you’d get 12 meters per second. This only works if the part started with an initial velocity of 0 m/s. This can be generalized with the equation

finalVelocity = initialVelocity + acceleration * time

**Remember: this equation works for a constant force**, but the area under the graph of acceleration vs time would work for any force. However, if that were the case, you’d probably want to look into learning calculus.

I know this topic is old but to anyone looking here now:

I’ve ran a couple of experiments. The experiment consists of a environment without gravity and a 1kg part. The part would be accelerated for 1 second certain acceleration “velocity” rates. What I found is the closest thing to one newton of 1 second acceleration (for a 1kg object, no gravity) is around 160 roblox “velocity” acceleration.