Where U represents potential energy, m represents mass, g represents the acceleration due to gravity (9.8 m/s 2), and h represents height. In order to calculate Spider-Man's initial potential energy, we must use the formula The crane which he shoots his web onto is 7 stories, or 21 meters high. The height of the building he wants to swing to is 1 story, or 3 meters high. The height of the building Spider-Man starts off on is 6 stories, or 18 meters high (assuming one story is 3 meters). He reaches his lowest point, and then swings back up a bit, crashing into a billboard. He's able to swing to the far building, but he is unable to stop himself.
Since he's new at this, his plan doesn't work out well. He attempts to swing from one roof on to another by shooting his web onto a crane over a far building, and swinging himself onto a lower building's rooftop. In Chapter 8, entitled 'Scaling the heights', Spider-Man is first learning how to use his web to swing from place to place. He furthers this power by using his web as a rope, and swinging from place to place. Soon after that, he realizes that he can shoot his web onto objects, such as tall buildings. He begins to experiment and develop his powers and realizes that he can shoot web out of his forearms. The feature film Spider-Man is about a young man who obtains extraordinary powers by being bitten by a genetically altered spider.