Kinetic energy = (1/2) (mass) (speed)²
Dog:
KE = (1/2) (20 kg) (16 m/s)² = (10kg) (256 m²/s²) = 2,560 joules
Bear:
KE = (1/2) (923 kg) (2.5 m/s)² = (461.5kg) (6.25 m²/s²) = 2,884.4 joules
==> The bear has 12.7% more kinetic energy than the dog has.
He will also have more stored food energy than the dog,
especially after he catches and eats the dog.
