Question

A plane is flying horizontally with speed
152 m/s at a height 2110 m above the ground,
when a package is dropped from the plane.
The acceleration of gravity is 9.8 m/s
2
.
Neglecting air resistance,A second package is thrown downward from
the plane with a vertical speed v1 = 72 m/s.
What is the magnitude of the total velocity
of the package at the moment it is thrown as
seen by an observer on the ground?
Answer in units of m/s