- #1
Seiya
- 43
- 1
A roller coaster car of mass 1500 kg starts a distance H = 25 m above the bottom of a loop 15 m in diameter (Figure 7-24). If friction is negligible, find the downward force of the rails on the car when it is upside down at the top of the loop.
Uhm iwell i figured out the KE and the PE at the 15m height of the loop... and then i tried calculating the centripital force using F=(mv^2)R ... but i can't figure out how to get the downard force of the rails on the car? :(
Any hints? Thanks
Uhm iwell i figured out the KE and the PE at the 15m height of the loop... and then i tried calculating the centripital force using F=(mv^2)R ... but i can't figure out how to get the downard force of the rails on the car? :(
Any hints? Thanks