a 5 kg fish swimming at a speed of 1 m/s swallows an absent-minded 1 kg fish at rest. a. what is the initial total momentum of the system? b. what is the final total momentum of the system? c. what is the speed of the larger fish after this lunch? d. what is the initial total kinetic energy of the system? e. what is the final total kinetic energy of the system? f. calculate the % loss in kinetic energy of the system