Answer :
Momentum of elephant = 6300 * 0.11 = 693 kg-m/s
Momentum for the dolphin = 50 * 10.4 = 520 kg-m/s
Difference in momentum = 693 - 520 = 173 kg-m/s
Momentum for the dolphin = 50 * 10.4 = 520 kg-m/s
Difference in momentum = 693 - 520 = 173 kg-m/s