Why is the first hill the highest?

Answer 1

For a roller coaster, it is the highest so it has enough momentum to finish the ride.

This is only for a wooden roller coaster. Some modern steel rides have self-propelling LIM circuits that blast the riders instantly from 0 to over 60 mph, up and over hills, and around to the station. (Some examples are the tallest and fastest ride in the world as of 2009- Kingda Ka in Six Flags New Jersey and Top thrill Dragster in Cedar Point, which holds the number 2 spot for excitement.) X in Magic Mountain, Superman:Ride of Steel, and Millennium Force are all modern rides that still use the chain-lift hill system. But these don't run on a real "chain" and aren't powered by a motor, but computers and fast gears that take the rider from ground level to over 200 feet in seconds. People think that corkscrew and vertical loop coasters are unsafe because there's a chance the rider could fall off. Not only are they held in one piece by the most complex and strong network of supports, but also by gravity itself. So even if the ride did fail, kinetic energy will do the job by forcing the train upwards. This is an opposing gravity effect. This can be done in experiments at home. Take a base with a string to hold on to. Take a cup of water and place it on the base. You can swing it in a circle upside down without spilling (until it looses its momentum of course.) The force keeps the water from coming out. Water in itself has many unique properties, allowing it to bend with the forces of gravity. Steel is denser than water, so you would expect a paper clip to sink. But if you gently let it sit on the surface it will float. It acts as a skin. The clip will even leave an indent in the water until it is taken out. Water doesn't overflow a drink very easily, because it has a knack to attach to itself. The hydrogen and oxygen molecules are unbalanced. If ice was denser than liquid water (it's not, that's how ice cubes work) then it would be like most other elements, freezing from the bottom up. If this happened, no life would exist in lakes in winter. What this all has to do with your question i don't know. There is today's science lesson. Come back tomorrow, as I will demonstrate the string theory to you!