emogalaxcy7722 emogalaxcy7722
  • 23-08-2019
  • Physics
contestada

A package is dropped from helicopter moving upward at 13 m/s takes 17.1 s before it hits ground. How high was it?

Respuesta :

Muscardinus Muscardinus
  • 27-08-2019

Answer:

Height of the helicopter, h = 1655.10 meters

Explanation:

It is given that,

Initial velocity of the package, u = 13 m/s

Time taken, t = 17.1 s

We need to find the height of the helicopter. Using the second equation of motion as :

[tex]h=ut+\dfrac{1}{2}at^2[/tex]

a = g (acceleration due to gravity)

[tex]h=13\ m/s\times 17.1\ s+\dfrac{1}{2}\times 9.8\ m/s^2\times (17.1\ s)^2[/tex]

h = 1655.10 m

So, the helicopter is at a height of 1655.10 meters. Hence, this is the required solution.

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