Question

In example 10 the kingda ka roller coaster starts with a speed of 6.0 m/s at the top of the drop and attains a speed of 50.3 m/s when it reaches the bottom. if the roller coaster were to then start up an identical hill, what speed would it attain when it reached the top? assume that friction and air resistance are absent.

Answer 1

The speed of the roller coaster when it has to start a similar identical hill the speed would be exactly the same that is 6.0 m/s. And the fact that there is an absence of both friction and air resistance helps us get to this conclusion that it is same as in the previous case.