Endotherms, such as birds and mammals, use metabolic heat to maintain a stable internal temperature, often one different from the environment. Ectotherms, like lizards and snakes, do not use metabolic heat to maintain their body temperature but take on the temperature of the environment.
the the second least force as it go it lose more and more force until it falls when it force the ball to drop the minute it hits the floor it has the least force