(1)Two balls of masses in the ratio 1:2 are dropped from the same height. Find: (a) the ratio between their velocites when they strike the ground, and (b) the ratio of the forces acting on them during motion.
(2) A uniform metre scale can be balanced at the 70.0cm mark when a mass of 0.05kg is hung from the 94.0cm mark. Find:
1. The mass of the metre sacle
2. draw a diagram of the arrangement.