Circular Motion: Plane does a loop

[thussain93]

Homework Statement

A Jet pilot takes his aircraft in a vertical loop. if the jet is moving at a speed of 700km/hr at the bottom of the loop, determine the minimum radius of the loop if the acceleration at the lowest point doesn't exceed 6.0g's (this means 6.0 x acceleration due to gravity on earth)

Homework Equations

Fcentripital = MV^2/R

The Attempt at a Solution

All i know is that 700km/hr is 194.44m/s
and i also know that the Fg at the bottom would be -58.8N
I'm totally stuck, help me out thanks

 

[tiny-tim]

Welcome to PF!

Hi thussain93! Welcome to PF!

(try using the X² tag just above the Reply box )

It just means find R such that the centripetal acceleration is 6 times 9.8.