Tuesday, August 7, 2012

Final 13 - Double Inclined Plane


Given:

  • $\mbox{Two masses connected by a rope and pully} $
    • $\mbox{mass 1 is on a plane inclined at an angle alpha} $
    • $\mbox{mass 2 is on a plane inclined at an angle beta} $
  • $a = g \frac{M_{unknown}\sin{\beta}  {(operator)}  M_{unknown}\sin{\alpha}}{M_1 ({operator}) M_2}   $

Question:

  • $What are subscripts and operators? $

Rationale:

  • $M_1 \; \mbox{is associated with angle alpha} $
  • $M_2 \; \mbox{is associated with angle beta} $
    • $a = g \frac{M_2 \sin{\beta}  {(operator)}  M_1 \sin{\alpha}}{M_1 ({operator}) M_2}   $
  • $\mbox{The denominator operator cannot be multiply or divide}$
    • $\mbox{Since if either mass is zero, then the equation  would be indeterminate}   $
    • $\mbox{So the operator must be + or - }$
      • $\mbox{But it cannot be minus,  since it would indeterminate is the masses are equal}$
      • $\mbox{Therefore the denominator operator is plus.}$
  • $\mbox{If the masses are equal and the angles are equal, }$
    • $\mbox{Then the numerator must be zero}$
    • $\mbox{Thus the numerator operator must be minus.}$

Calculate:

  • $ $

References:

  • $ $

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