Which has a greater kinetic energy a 20.0kg greyhound running at 16m/s or a 923.0kg polar bear running at 2.5m/s

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.

sure thing what is it

Explanation: