Physics help please???
A roller coaster car filled with passengers has a mass of 4800 kg. What speed must
it have at the top of a 75.0 m-tall vertical circular loop in order for the car not to
fall off the track?
- FiremanLv 71 month agoFavorite Answer
At the top vertical position of circular loop in order for the car not to
fall off the track:=>mv^2/r = mg
=>v = √rg
=>v = √[(75/2) x 9.8]
=>v = 19.17 m/s