What is approximately the centripetal acceleration (in units of acceleration due to gravity on earth, g = 10 m `s^(-2)`) of an air-craft flying at a speed of 400 m `s^(-1)` through a circular arc of radius 0.6 km ?

Options

A. `267 m//s^(2)`
B. `169 m//s^(2)`
C. `135 m//s^(2)`
D. `302 m//s^(2)`

Answer

A

Explanation

`a_( c) = v^(2)/R = (400)^(2)/(0.6 xx 10^(-3))= 26.7 xx 10 = 267 m//s^(2)`