A 5. 0-kg block suspended from a spring scale is slowly lowered onto a vertical spring (Figure P8.94).

(a) What does the scale read before the block touches the vertical spring?

(b) If the scale reads \(40 \mathrm{~N}\) when the bottom spring is compressed \(30 \mathrm{~mm}\), what is \(k\) for the bottom spring?

(c) How far does the block compress the bottom spring when the scale reads 0 ?

Data from Figure P8.94

Figure P8.94 wwww 5.0 kg I