Physics 9702 · AS & A Level · Turning effects of forces

Turning effects of forces — practice question

A bar of uniform density, with length $L$ and weight $W$, is placed horizontally on two supports, $X$ and $Y$. At a point $ rac{L}{6}$ from one end of the bar, support $X$ provides an upward force $R_X$. At the opposite end of the bar, support $Y$ provides an upward force $R_Y$. The bar is balanced in equilibrium. Determine the ratio $\frac{R_X}{R_Y}$?

  • A$\frac{3}{2}$
  • B$\frac{2}{3}$
  • C$\frac{3}{5}$
  • D$\frac{2}{5}$

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