# Vertical Circle

## Homework Statement

A 9940 kg plane in an air show completes a vertical loop of radius 596 meters at 155 m/s. What normal force does the airplane seat exert on the 92 kg pilot at the top of the loop and at the bottom of the loop.

## Homework Equations

Top of loop
m(v^2/r)= Fnormal + mg
m(v^2/r)= Fnormal - mg

## The Attempt at a Solution

should i use the mass of the pilot and the plane for this problem iam really stuck.

alphysicist
Homework Helper
Hi myoplex11,

## Homework Statement

A 9940 kg plane in an air show completes a vertical loop of radius 596 meters at 155 m/s. What normal force does the airplane seat exert on the 92 kg pilot at the top of the loop and at the bottom of the loop.

## Homework Equations

Top of loop
m(v^2/r)= Fnormal + mg
m(v^2/r)= Fnormal - mg

## The Attempt at a Solution

should i use the mass of the pilot and the plane for this problem iam really stuck.

It's asking about forces acting on the pilot, so begin with a free body diagram for the pilot. What mass would you use? What forces act on the pilot, and what is the pilot's acceleration?