Use the example of the two soccer players in the ball suits to explain Newton's
third law.

Newton's third law states that " for every action, there is an equal and opposite reaction". In soccer, when you kick the soccer ball you will feel the force of the kick back into your leg. You won't feel the force as much because your legs have more mass than the soccer ball.

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.