Recent content by beatem

  1. B

    Undergrad How Does the Inequality 2*3^k >= 3 Arise in Mathematical Induction?

    Thanks for the reply! Sorry: I meant (3^n)+2 So is there no need for the extra inequality of 2*3^n >= 3? Or am I just missing something?
  2. B

    Undergrad How Does the Inequality 2*3^k >= 3 Arise in Mathematical Induction?

    Hi, I'm trying to learn mathematical induction for proving inequalities, but there is just one step I cannot get past: finding another inequality that is added to the inductive hypothesis. For example, in this problem: Prove for all positive integers (n >= 1), prove 3^n + 2 >= 3n. I...
  3. B

    What Conservation Laws Apply in a 1-D Collision Involving a Spring?

    Thanks so much for your help guys! This is making so much more sense - I didn't even really know where to start, but this works well. My professor told me to have masses equal to each other, from this point, so: I got V2 = x*sqrt(k/m) and U2 = V0 - x*sqrt(k/m). I just have one last question...
  4. B

    What Conservation Laws Apply in a 1-D Collision Involving a Spring?

    Homework Statement Everything is in symbols. So a block of mass M1 moves on a frictionless surface with velocity v0. There is a mass M2 at rest sitting there with a spring and platform (each of negligible mass) attached to it. The spring constant is k. What quantities are conserved...