Step-by-step explanation:
The force of the roller-coaster track on the cart at the bottom is given by :
, m is mass of roller coaster
Case 1.
R = 60 m v = 16 m/s
![F=((16)^2m)/(60)=4.26m\ N](https://img.qammunity.org/2021/formulas/physics/college/6cpv7ho5ntmqipyefwbj1h885oa20mjbg8.png)
Case 2.
R = 15 m v = 8 m/s
![F=((8)^2m)/(15)=4.26m\ N](https://img.qammunity.org/2021/formulas/physics/college/fe6cvyglw80lon622zm7fl7mbm3pi7gu9n.png)
Case 3.
R = 30 m v = 4 m/s
![F=((4)^2m)/(30)=0.54m\ N](https://img.qammunity.org/2021/formulas/physics/college/abwxs3f00c1owrv8dlm2zjxfzjtexyqlre.png)
Case 4.
R = 45 m v = 4 m/s
![F=((4)^2m)/(45)=0.36m\ N](https://img.qammunity.org/2021/formulas/physics/college/3w59cebyazkobmk3y5t3x5p9czjmtjhtvp.png)
Case 5.
R = 30 m v = 16 m/s
![F=((16)^2m)/(30)=8.54m\ N](https://img.qammunity.org/2021/formulas/physics/college/8yjxe4enzv5x76kjivs7ylelsdn5xyobb5.png)
Case 6.
R = 15 m v =12 m/s
![F=((12)^2m)/(15)=9.6m\ N](https://img.qammunity.org/2021/formulas/physics/college/ozm7nexwd6sno17itwp4uf5an09fwsyi6j.png)
Ranking from largest to smallest is given by :
F>E>A=B>C>D