Respuesta :

Answer:

0.0048kg

Explanation:

Given parameters:

Height of flight  = 8km  = 8000m

Gravitational potential energy  = 376J

Unknown:

Mass  = ?

Solution:

To solve this problem;

     Gravitational potential energy  = mgh

m is the mass of the body

g is the acceleration due to gravity

h is the height of the helicopter

    Insert the parameters and solve;

       376  = m x 9.8 x 8000

       376  = 78400m

         m  = 0.0048kg