(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A red car and a blue car collide at an in intersection. Prior to the collision the red car with mass 1000kg was heading North at 15m/s. The blue car with mass 1500 kg was heading East at 20m/s. The collision is completely inelastic with the cars sticking together and moving as one. At what angle measured North of East do the cars move off?

2. Relevant equations

I used Vf = √(Vfx2) + (Vfy2)

I alsoUsed m1vf1x+ m2vf2x= m1vi1x + m2vix for x component and

m1vf1y+ m2vf2y= m1vi1y + m2viy for y component

and then θ = tan-1(vfy/vfx) to findthe angle but i keep geting it wrong

3. The attempt at a solution

I ended up with an angle of around 27 degrees

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# Homework Help: Conservation of energy help

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