Homework Help: Physics

Posted by Nikita on Monday, October 26, 2009 at 11:19am.

A roller coaster ride includes a circular loop with radius R = 11.6 m. What minimum speed must the car have at the top to stay in contact with the tracks?

How would I go around solving this, as in what formula would I need?

Physics - MathMate, Monday, October 26, 2009 at 11:43am
The centripetal acceleration is given by v²/r m/s².
Acceleration due to gravity is g=9.8 m/s²

If one is to offset the other, they must be equal. at the highest point of the loop.

So set
v²/r = g
to solve for v.
Note: at this speed, the normal force on the track is zero.

Answer this Question

Related Questions

Physics - A roller coaster ride includes a circular loop with radius R = 13.3 m...
physics - A roller coaster ride includes a circular loop with radius R = 13.1 m...
physics - 3.A roller coaster has a vertical loop with radius 27.1 m. With what ...
physics - A roller coaster has a vertical loop with radius 17.9 m. With what ...
physics - Part of a roller-coaster ride involves coasting down an incline and ...
Physics- Elena please help! - Part of a roller-coaster ride involves coasting ...
physics - A roller coaster has a loop the loop with a loop radius of 14.5 m. ...
physics - A certain roller coaster has a circular, vertical loop of radius 10 ...
physics - A certain roller coaster has a circular, vertical loop of radius 10 ...
physics - A certain roller coaster has a circular, vertical loop of radius 10 ...

For Further Reading

First Name:
School Subject:
Answer: