Recent content by pf_001

I'm sorry, second.

Homework Statement A particle's acceleration is given by the equation a(t) = 2t + 1 m/seg^2. If its velocity at t = 2 equals 5 m/seg, how much does its displacement change from t = 2 to t = 4? Homework Equations The Attempt at a Solution I thought I could integrate the...

Maybe this picture can help. http://img715.imageshack.us/img715/1409/collision.png The speed the triangle has before the collision is 1m/seg and its mass is 2kg.

I guess I should've said that this is in a 2D environment. It's just a rigid equilateral triangle, no friction, any angle.

Hi, how can I calculate the reaction a triangle with a certain speed and angle has upon hitting a wall? I wish to be able to know the angular and linear velocity it has after the collision. Thanks in advanced.

Hi, can someonse explain me some things about fission? Supposedly, the Little Boy bomb consisted of a single bullet of uranium 235 that was to be shot at a bigger mass of uranium 235 to achieve critical mass, then an initiator would introduce a burst of neutrons so fission could occur. Two...