Answer:
Height of package initially = 1054.4 metre
Explanation:
The package is dropped from a helicopter moving upward at 15 m/s.
Total time taken for the package to reach the ground = 16 seconds.
Initially , the package has an upward velocity and therefore it moves upwards ,reaches the topmost point and then falls down and finally strikes the ground.
Displacement , h = unknown
Time , t = 16 seconds
Initial velocity , u = 16 m/s
By equation of motion ,
s = [tex]u \times t - 0.5 \times g \times t^{2}[/tex]
Acceleration , a = g = 9.8 m/[tex]s^{2}[/tex]
-s = [tex]15 \times 16 - 0.5\times 9.8\times (16)^{2}[/tex]
-s = 240 - 1254.4
s = 1054.4 metres
