You have been hired to design a spring-launched roller coaster that will carry two passengers per car. the car goes up a 12-m-high hill, then descends 18 m to the track's lowest point. you've determined that the spring can be compressed a maximum of 2.3 m and that a loaded car will have a maximum mass of 430 kg . for safety reasons, the spring constant should be 13 % larger than the minimum needed 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.
Answers: 3
=mgh
=11.53 m/s
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