An aicraft loops the loop of radius `R=3000m` with a constant speed `v=200m//s`. Find the weight of the flyer of mass `m=60kg` in the lower, upper and middle points of the loop.

Explanation

At the lowest point:
`N_(A)-mg=(mv^(2))/(R )`
`N_(A)-60xx10=(60xx200xx200)/(3000)`
`impliesN_(A)=600+800=1400N`
At the highest point:
`N_(B)+mg=(mv^(2))/(R )impliesN_(B)=800-600=200N`
At the middle:
`N_(c)=(mv^920)/(R )=800`
Resultant force=`sqrt(N_(c)^(2)+(mg)^(2))=sqrt((800)^(2)+(600)^(2))`
`=1000N`
weight is given by contact force,hence in the lower, upper and the middle the weight of flyer is `1400N,200N` and `1000N`,respectively.