# A concise set of equation of physics that handles basic 2d physics for acceleration?

I am making an Asteroids clone and I want to implement proper physics for the objects. What equations would I use to calculate the acceleration? For example, I have a ship, and it might have properties like mass and other stuff (whatever might be relevant, I don't know). If I assume thrust of 10 units, how would the ship accelerate over time in the given direction? There is no friction since the game is set in space, so I don't need to worry about deceleration.

When I Google formula for acceleration, it says final velocity - starting velocity / elapsed time but that's for calculating how much an already accelerating object is accelerating by isn't it? Or am I confused? Thanks for helping.

• This is just grade 9 algebra to rearrange that equation to solve for final velocity, given starting velocity and your time step. Jun 29, 2021 at 21:13
• @DMGregory Ah, thanks. So that gives final = acc * time + starting. So the I have time and starting. Would I choose and arbitrary value for acceleration or would that depend of the physical system ? Jun 29, 2021 at 21:18
• Jun 29, 2021 at 21:28

Force = Mass * Acceleration.
Acceleration = Force / Mass