A 10,000-kg freight car coasting at 10 m/s collides with 2000-kg automobile coasting at 30 m/s in the opposite direction. If the stick together after the impact how fast and in what direction will they be moving?

During the election for class president, 40% of the students voted for kellen, and 60% of the students voted for robbie. 500 students voted in total. how many more students voted for robbie than for kellen? answer with work : )