Question

A 500 kg dolphin swims at 4 m/s.

A 700 kg sea turtle swims at 3 m/s.

A 1,100 kg shark swims at 1.5 m/s.

Which sea creature has the most momentum?

Answer 1

The sea turtle has the most momentum.

Answer 2

momentum = mass × velocity

momentum of Dolphin = 500 × 4 = 2000 kgm/s

momentum of sea turtle = 700 × 3 = 2100 kgm/s

momentum of shark = 1,100 × 1.5 = 1650 kgm/s

So sea turtle has the highest momentum.