This is a motion problem. For bodies in a projectile motion, several equations have already been derived and simplified to account for the behavior of these bodies.
For the time of flight, the equation is
t = (2*v*sin(A))/g
where
v = initial velocity of the body
A = angle of the initial velocity
g = acceleration due to gravity (9.81 m/s^2)
t = time of flight
this formula can also be used if the air resistance can be neglected.
therefore, substituting the values, we get
t = 275.65 s or 4.59 min
