void MetersPerSecond::operator+=(const Speed& speed) { m_metersPerSecond += speed.getMetersPerSecond(); }
MetersPerSecond MetersPerSecond::operator-(const Speed& speed) const { return MetersPerSecond(getMetersPerSecond() - speed.getMetersPerSecond()); }
double MetersPerSecond::operator/(const Speed& speed) const { return getMetersPerSecond() / speed.getMetersPerSecond(); }
MetersPerSecond::MetersPerSecond(const Speed& speed) { m_metersPerSecond = speed.getMetersPerSecond(); }