How does a catapult demonstarte newton's second law of motion?

Answer 1

potential energy in the rubber is translated as a (diminishing) force on the mass, causing acceleration

Answer 2

A catapult demonstrates Newton's second law of motion by showing how the acceleration of the projectile (object being launched) is directly proportional to the force applied by the tension in the catapult's arm (F=ma). This means that the larger the force applied to the arm, the greater the acceleration of the projectile, leading to a more powerful launch.