Two ice skaters push off against one another starting from a stationary position. The $45-kg$ skater acquires a speed of $0\mathrm{.}375\frac{m}{s}.$ What speed does the $60-kg$ skater acquire? $0\mathrm{.}500\frac{m}{s}0\mathrm{.}281\frac{m}{s}0\mathrm{.}750\frac{m}{s}0\mathrm{.}375\frac{m}{s}0\frac{m}{s}$