Three objects P, Q and R each have different masses and different speeds, as listed in the table. Masses: $P = 1.0\,\text{kg}$, $Q = 2.0\,\text{kg}$, $R = 5.0\,\text{kg}$. Speeds: $P = 3.0\,\text{m s}^{-1}$, $Q = 2.0\,\text{m s}^{-1}$, $R = 1.0\,\text{m s}^{-1}$. In what order should the objects be placed for increasing kinetic energy (smallest first)?
- AP → Q → R
- BP → R → Q
- CR → P → Q
- DR → Q → P