Question

(b) The cabin and passengers have a total mass of 800 kg. The vertical distance between
B and C is 50 m.
Calculate the increase of gravitational potential energy of the cabin and passengers when they
move from B to C.
energy =

Answer 1

Answer:

392 kJ

Explanation:

Given that,

The total mass of the cabin and the passengers = 800 kg

The vertical distance between  B and C is 50 m.

We need to find the increase of gravitational potential energy of the cabin and passengers when they  move from B to C. It can be given by the relation as follows :

$E=mgh\\\\E=800\times 9.8\times 50\\\\E=392000\ J\\\\\text{or}\\\\E=392\ kJ$

So, the increase in gravitational potential energy is 392 kJ.