This to illustrate the different forces of deceleration available to an aircraft and their maximum effectiveness during aircraft rollout in wet conditions.
Arrasto= drag in landing configuration, ground spoilers extended,...
Reverso= Thrust reversers
Freio= Brakes
This diagram appeared in a procedure of the Brazilian Civil Aviation (ANAC) dated Jan. 31, 2007 on the operation of jets in wet conditions on the runways of Sao Paulo.