Today i learned about motion and forces like inertia and friction. Here is a website to make blueprints of a roller coasters.. and it helps you learn about forces, motion and physics.
http://www.learner.org/interactives/parkphysics/coaster/result.php3
http://www.learner.org/interactives/parkphysics/coaster/result.php3
I also learned about different kinds of forces, such as: applied force, gravitational force, tension force, frictional force, and normal force. It will be interesting to see what other things I will learn.
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