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Alex Ar [27]
2 years ago
12

(b) The cabin and passengers have a total mass of 800 kg. The vertical distance between

Physics
1 answer:
kodGreya [7K]2 years ago
3 0

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.

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Answer:

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Explanation:

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using this value of C from equation (3) in equation (1):

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<u>D = - 0.57</u>

Put this value in equation (3), we get:

C = \frac{2-(5)(\frac{-4}{7} )}{2}\\\\C = \frac{\frac{14+20}{7}}{2}\\\\C = \frac{34}{(7)(2)}\\\\C =  \frac{17}{7}\\

<u>C = 2.43</u>

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