Given that the mass of the jet is m = 20000 kg.
The tangential velocity of the jet is
![\begin{gathered} v=\frac{1500\operatorname{km}}{hr} \\ =(1500*1000)/(60*60) \\ =416.67\text{ m/s} \end{gathered}]()
The centripetal acceleration is

This centripetal acceleration can be converted into m/s by using acceleration due to gravity, g = 9.8 m/s which is as follows

We have to find the radius, r.
It can be calculated as

Substituting the values, the radius will be
