Answer:Here are the answers to your questions about sipa:1. Yes, if the boy doesn't catch the sipa with his foot, it will fall to the ground due to gravity's downward pull.2. Gravity is the force acting on the sipa, pulling it downward when tossed upward.3. Yes, friction acts between the sipa and the boy's foot when he catches or kicks it.4. Friction: - Helps the boy control the sipa's movement and direction. - Prevents the sipa from slipping off his foot. - Slows down the sipa's motion.5. Gravity and friction affect sipa gameplay: - Gravity: - Pulls the sipa downward. - Limits the sipa's upward trajectory. - Friction: - Enables players to control the sipa. - Affects the sipa's speed and direction.Additional notes:- Air resistance also affects the sipa's motion.- Players use technique and foot positioning to balance gravity and friction for optimal control.