Final answer:
To calculate the height of the ball above the ground when the girl shoots for goal, we add the girl's height of 1.7 m to the height of the ball above the girl's head, which is 0.5 m. The gravitational potential energy of the ball can be calculated using the equation mgh, where m is the mass of the ball, g is the acceleration due to gravity, and h is the height.
Step-by-step explanation:
To calculate the height of the ball above the ground when the girl shoots for goal, we add the girl's height of 1.7 m to the height of the ball above the girl's head, which is 0.5 m. This gives us a total height of 2.2 m. The gravitational potential energy of the ball can be calculated using the equation mgh, where m is the mass of the ball, g is the acceleration due to gravity, and h is the height. By plugging in the values, we can find the gravitational potential energy of the ball on the shelf.