Let's calculate the momentum of Fiona, given by the product between its mass and its speed:
[tex]p=mv=(313 kg)(8 m/s)=2504 kg m/s[/tex]
Now let's compare it with the momentum of the other animals:
a) the mass of the sea turtle is missing, so we cannot calculate its momentum.
b) the momentum of the dolphin is
[tex]p=mv=(150 kg)(18 m/s)=2700 kg m/s[/tex]
c) the momentum of the horse is
[tex]p=mv=(380 kg)(4 m/s)=1520 kg m/s[/tex]
d) the momentum of the lion is
[tex]p=mv=(190 kg)(11 m/s)=2090 m/s[/tex]
And we can see that the correct answer is b), because the momentum of the dolphin is greater than the momentum of Fiona.
