# Help with forces

1. Sep 26, 2004

### Faiza

~~~~~~~FORCES!~~~~~~~~~help me PLEASSSSEEEE

Two books are stacked on top of each other on a level table. The mass of the upperbook is greater than the mass of the lower book. I wanna draw a free body diagram for each book. What forces are acting on the upper book and lower book?

I also have to rank all of the forces shown in the free body diagram i draw in order from largest to smallest. IF any of the forces have equal magnitude, iim suppose to indicate that explicitly. explain?

Last edited: Sep 26, 2004
2. Sep 27, 2004

### Leong

$$\begin{multline*} \begin{split} &Static\ equilibrium:\\ &Mass\ m_2:\\ &W_2=Fm_2m_1\\ &Mass\ m_1:\\ &W_1+Fm_1m_2=F_{m_1(table)}\\ &F_{m_1(table)}= W_1+ W_2\\ &F_{m_1(table)}= W_1+ W_2>W_2=Fm_1m_2=Fm_2m_1>W_1\\ \end{split} \end{multline*}$$

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