Figure 6-47 shows three crates being pushed over a concrete floor by a horizontal force \( \vec{...

Figure 6-47 shows three crates being pushed over a concrete floor by a horizontal force \( \vec{F} \) of magnitude \( 425 \mathrm{~N} \). The masses of the crates are \( m_{1}=30.0 \mathrm{~kg}, m_{2}=\quad \) Figure 6-47
\( 10.0 \mathrm{~kg} \), and \( m_{3}=20.0 \mathrm{~kg} \).
The coefficient of kinetic friction between the floor and each of the crates is \( 0.700 \). (a) What is the magnitude \( F_{32} \) of the force on crate 3 from crate 2? (b) If the crates then slide onto a polished floor, where the coefficient of kinetic friction is less than \( 0.700 \), is magnitude \( F_{32} \) more than, less than, or the same as it was when the coefficient was \( 0.700 ? \)