(Solved):   8. A uniform meter stick supported at the \( 25-\mathrm{cm} \) mark is in equilibrium when ...

 

8. A uniform meter stick supported at the \( 25-\mathrm{cm} \) mark is in equilibrium when a \( 1-\mathrm{kg} \) rock is suspended at the \( 0-\mathrm{cm} \) end (as shown in Fig. 9-37). Is the mass of the meter stick greater than, equal to, or less than the mass of the rock? Explain your reasoning.