Recent content by chemtal

  1. C

    Find mass of cylinder (rotational motion question)

    so i got the 48.4kg=M, but is this not the total mass of the system, so wouldn't the mass of the cylinder be M-m=48.4-0.3-48.1, which is still 48 when you round it to two significant digits, but i just want to make sure that I am understanding where all the variables are coming from. or am i...
  2. C

    Find mass of cylinder (rotational motion question)

    O i figured it out! i used y=y0+v0t=(1/2)at^2 and got an acceleration of 0.12m/s
  3. C

    How Do You Calculate the Mass of a Rotating Square Plate?

    so it is safe to assume that the length and width are both 1.2?
  4. C

    Find mass of cylinder (rotational motion question)

    im still confused with part B. my attempt: sum of F in the mass= ma=mg-Ft mg-ma=Ft (0.3kg)(9.8m/s^2)-(0.300kg)(a)=Ft But what is a? I am assuming its not "g" because the tension would decrease the acceleration. Also, do we need to take friction into account?
  5. C

    How Do You Calculate the Mass of a Rotating Square Plate?

    when substituting into I = 1/12M(L^2 + w^2), i understand that L= 1.2m but how did u come to the conclusion that w is also 1.2 m. I understand that if this were a square but its a plate
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