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Dmitriy789 [7]
2 years ago
10

If a 1 kg book has 46 Joules of gravitational potential energy how high is the shelf it is on?

Physics
1 answer:
Mashcka [7]2 years ago
4 0

Answer:

4.7m

Explanation:

Given parameters:

Mass of the book  = 1kg

Gravitational potential energy  = 46J

Unknown:

Height of the shelf  = ?

Solution:

The potential energy is due to the position of a body above the ground.

        Gravitational potential energy  = mgh

m is the mass,

g is the acceleration due gravity  = 9.8m/s²

h is the height which is unknown

                       46  = 1 x 9.8 x h

                       h  = 4.7m

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u=3
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s=2.5
a=?
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Then using the equation:
F=ma
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