A 600 kg cannon is used to fire a 15kg cannonball to the right at a velocity of 500 m/s. What is the cannonball’s final momentum in kg*m/s?

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.