Here's why:
* No standardized measurement: There's no scientific method to measure the force of a tackle in football.
* Variability in technique: The force of a hit depends on many factors like the angle of impact, the speed of the players, and the technique used.
* Body mass and speed: While Ray Lewis was known for his powerful hits, his exact weight and speed varied throughout his career, making it hard to estimate a consistent force.
Instead of focusing on a specific number, it's more accurate to say that Ray Lewis was known for his impactful hitting, his aggressive tackling style, and his powerful presence on the field.