Jump to content
  • Advertisement
Sign in to follow this  
raptorstrike

Inertia

This topic is 4881 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.

If you intended to correct an error in the post then please contact us.

Recommended Posts

what is the formula for the acceleration of an object of X mass on a slope of Y degrees? if there is one this is basically a question of inertia but i cant seem to find anything on it (no this isnt homework im in 9th grade do you really think we are into this stuff yet) thanks alot [grin]

Share this post


Link to post
Share on other sites
Advertisement
What's inertial about it? It's an acceleration problem, not an inertial one.

Anyway, mass m, angle θ, position x, y. Ignoring friction.


o/|
/ |
/ |
/___|


IIRC:

We have an object at the top (o). It's going to get a force F down along that side of the triangle it sits on. The force acting on it is gravity, Fg. The force o experiences will be the projection of Fg in the direction of the slope. Since Fg is vertical we end up with Fx=Fg sin(θ) and Fy=Fg cos(θ), where Fx is the force on the object in the x direction and Fy is the force in the y direction.
(Note that this uses y positive in the downward direction. If yours is upward, just make Fy negative.)
We know F=ma, and from this we can easily work out the acceleration in the x and y directions.

I think that's right.

Share this post


Link to post
Share on other sites
Sign in to follow this  

  • Advertisement
×

Important Information

By using GameDev.net, you agree to our community Guidelines, Terms of Use, and Privacy Policy.

We are the game development community.

Whether you are an indie, hobbyist, AAA developer, or just trying to learn, GameDev.net is the place for you to learn, share, and connect with the games industry. Learn more About Us or sign up!

Sign me up!