# #

As a rollercoaster passes the bottommost point in a loop, an accelerometer records an acceleration of $${{params.a}}g$$. The speed of the car is $${{params.speed_of_car}}km/h$$ and is decreasing at a rate of $${{params.rate_of_decrease}}km/h$$ every second.

## Question Text#

Determine the radius of curvature at the position shown.