Recent content by Isweer

  1. I

    SHM: Choose Sin or Cos to Solve?

    Thanks for help
  2. I

    SHM: Choose Sin or Cos to Solve?

    When I started solving this problem I immediately wrote the general form I learned. X=A*cos(wt + ∅ ). Then I started breaking the problem into pieces: A=6, w= (k/m)^0.5 = (400/4)^0.5 = 10, and ∅= sin(inverse) (x at t=0)/A)= sin(inverse) (6/6)= 90 degrees which is ∏/2 by substituting...
  3. I

    SHM: Choose Sin or Cos to Solve?

    I wanted to ask if weather I choose sin or cos makes difference in solving problems. In this question the answer is (a) but, what I am asking is that I got cos instead of sin ( from the general form X=Acos(ωt + ∅ )