* Size: Kangaroos are significantly larger than cheetahs. Even a small kangaroo would be too big for a cheetah to consume in such a short time.
* Digestion: Cheetahs, like all animals, need time to digest their food. Even if a cheetah could physically take down a kangaroo in a short time, it wouldn't be able to eat it whole in 10 seconds.
* Habitat: Cheetahs live in Africa, while kangaroos are native to Australia. These animals would never encounter each other in the wild.
While a cheetah can reach incredible speeds, it's not a magic eating machine. It takes time to kill and consume prey, and a kangaroo would be a very challenging meal.