Question

13. A roller coaster is moving at a speed of 39 m/s. How much time does it take to stopwhile accelerating at -6 m/s2?

Answer 1

The average acceleration can be written as:

`a=(\Delta v)/(\Delta t)`

Then, for our case, we can find out the time taken by applying:

`\Delta t=(\Delta v)/(a)\rightarrow\Delta t=(39)/(6)=6.5s`

Then, the total time taken is equal to 6.5s