Recent content by dbb2112

Thanks I am good now

anyone

potential energy? Homework Statement A potential is given by U=(x^3 y^2 z^4i - x^2 y^3 z j+x^3 y^3 k)J. Determine the force associated with this potential. Homework Equations Fx=-dU/dx? The Attempt at a SolutionI am not sure if i would just derive or how to approach this probelm

ok I am not sure if this is right, but i made the equation m2v2cos=m1v1'cos+m2v2'cos and found v2 to equal 2.13 would that be my final answer?

so i would use m1v1+M2V2=M1V1'+M2V2' but i do not know either of the final velocities?

I do not see how to use it when only the final velocity is given.

o wow i read that wrong.

Homework Statement A 2kg object moving 5m/s in the positive x direction has a one dimensional elastic collision with a 4kg object moving at 1m/s in the same direction. What is the resulting change in kinetic energy of the 4 kg object? Homework Equations K=1/2 m*v^2 m1v1+m2v2=(m1+m2)V...

i meant to title inelastic

Homework Statement A 70kg man who is ice skating north collides with a 30kg boy who is ice skating west. Immediately after the collision, the man and boy are observed to be moving together with a velocity of 2m/s in a direction 37 degrees north of west. What was the magnitude of the...

ok thank you for all your help but its almost 1 oclock and i have school tomorrow so could you leave a post for me of how i would answer the last part of my question so that i could look at it in the morning. Again, thank you for your help.

o ok thanks though

i don't know i still can not integrate, but my guess would be yes

instead of integrating, could i just find both kinetic energies and subtract them?

I know i but when you got offline i wanted someone else and therefore posted a new one.