Posted by **A roller-coaster car** on Monday, January 21, 2013 at 11:16pm.

A roller-coaster car speeds down a hill past point A where R1 = 8.6 m and then rolls up a hill past point B where R2 = 16.0 m.

(a) The car has a speed of 18.4 m/s at point A. if the track exerts a normal force on the car of 2.21 104 N at this point, what is the mass of the car?

(b) What is the maximum speed the car can have at point B for the gravitational force to hold it on the track?

## Answer This Question

## Related Questions

- physics - A roller coaster car speeds down a hill past point A and then rolls up...
- physics - A roller-coaster car speeds down a hill past point A where R1 = 8.0 m...
- Physics - A roller-coaster car speeds down a hill past point A where R1 = 8.2 m ...
- Physics - A roller-coaster car speeds down a hill past point A where R1 = 9.8 m ...
- Physics - A roller-coaster car speeds down a hill past point A where R1 = 10.4 m...
- Physics - A roller-coaster car speeds down a hill past point A and then rolls up...
- Physics - At the beginning of a roller coaster ride, the car is lifted to the ...
- Physics - At the beginning of a roller coaster ride, the car is lifted to the ...
- Physics - At the beginning of a roller coaster ride, the car is lifted to the ...
- Physics - a frictionless roller coaster car of mass m = 719 kg tops the first ...

More Related Questions