Which description best describes a plateau? A raised, flat-surfaced area bound on one or more sides by cliffs or steep slopes.
An area of land that rises very high above the land around it.
A mound or ridge of sand most often found on a coastline or in the desert.
A large area of flat or gently rolling land.

20 points

You have been hired to design a spring-launched roller coaster thatwill carry two passengers per car. the car goes up a 10-m highhill, then descends 15m to the track's lowest point. you'vedetermined that the spring can be compressed a maximum o 2.0m andthat a loaded car will have a maximum mass of 400kg. for safetyreasons, the spring constant should be 10% larger than the minimumneeded for the car to just make it over the top. a) what spring constant (k) should you specify ? b) what is the maximum speed of a 350 kg car if the spring iscompressed the full amount.