Example #2 A plane that is moving 200 m/s drops a package. The package
takes 15 seconds to reach the ground.
A) What height was the package dropped from?
B) How far did the plane travel from the time the package was
released until the package hit the ground? Is this the same distance
the package travels?
C) How fast was the package moving when it hit the
ground?

d is the correct answer

d. air pressure decreases as altitude increases.

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft