The angle of bank needed, measured from the vertical is 86.6⁰.
The angle of bank needed, measured from the vertical is calculated as follows;
v = √(rg tanθ)
where;
400² = (960 x 9.8 x tanθ)
tanθ = 400²(960 x 9.8)
tanθ = 17
θ = arc tan(17)
θ = 86.6⁰
Thus, the angle of bank needed, measured from the vertical is 86.6⁰.
Learn more about banking angle here: https://brainly.com/question/8169892
#SPJ1