Recent content by Minming

  1. Minming

    A problem about momentum and the elastic collision of two particles

    Hi, the law of cosines and implicit differentiation is useful, I get the answer by dθ'/dα =0, and get sinθ'=m 2/m1, it's same to the answer(when m1> m2). thanks
  2. Minming

    A problem about momentum and the elastic collision of two particles

    Thanks. I'll study centre-of-momentum frame, and try to solve it.
  3. Minming

    A problem about momentum and the elastic collision of two particles

  4. Minming

    A Question about the Double Atwood Machine

    Thank you. The Lagrangian mechanics seems difficult....
  5. Minming

    A Question about the Double Atwood Machine

    Thanks. I get it.
  6. Minming

    A Question about the Double Atwood Machine

    Hi, Steve4 I get it ,thinks.
  7. Minming

    A Question about the Double Atwood Machine

    Thank you, kuruman I have a misstake in the knowledge in pully. And your advice about effective mass and effective acceleration is very useful for me. Thanks.
  8. Minming

    A Question about the Double Atwood Machine

    Hi, BvU I take the pulley, m1 and m2 as a box. This box's mass is (m1+m2), and ΣF=FT3-(m1+m2)g.
  9. Minming

    A Question about the Double Atwood Machine

    Solution:
Back
Top