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Determine the amount of potential energy of a 5-newton book that is moved to three different shelves on a bookcase. The height of each shelf is 1.0 meters, 1.5 meters, and 2.0 meters.

Respuesta :

Potential energy is defined as

[tex]U = mgh[/tex]

here we have

mg = weight = 5 N

now for different heights we can say

[tex]h_1 = 1.0 m[/tex]

U = mgh

[tex]U_1 = 5 \times 1 = 5 J[/tex]

[tex]h_2 = 1.5 N[/tex]

[tex]U_2 = 5 \times 1.5 = 7.5 J[/tex]

[tex]h_3 = 2 m[/tex]

[tex]U_3 = 5 \times 2 = 10 N[/tex]

so potential energy in all three shells will be different and increases with height


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