How can a person's height affect their kick?

How does the length of the leg affect the strenght of the kick? Who kicks harder – shorter or taller people?

If we ask a tall football player of 90 kg (with a leg of 9 kg) to kick a ball, and then a short one of 60 kg (with a 6 kg leg) at the same leg velocity. Who would send the ball at a higher velocity?

After a few complex equations, its is possible to determine that the tall player will have made the ball move at 21.05 m/s, while the shorter one will have made it move at 18.46 m/s

So if both players kick the ball with the same leg velocity, the taller player will have sent the ball at a higher speed then the shorter player would.

In real life, taller players have longer legs than shorter ones, which means that their legs are heavier. When a person with a heavier leg kicks a ball, even if he spends the same energy as a shorter player, his leg velocity will be smaller than that of a lighter player. Knowing that, which player will have the strongest kick?

In this case, the velocity of the ball kicked by the shorter player will be higher than the velocity of the ball kicked by the taller one. So, generally, shorter people are able to deliver a greater force to the ball than taller ones (assuming the same energy is used for each kick).