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19,600 j "Apex"

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Gonzalo Abernathy

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2y ago
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10y ago

This problem involves gravitational potential energy, PEgrav. PEgrav = (m)(g)(h), where m is mass in kilograms (kg), g = acceleration due to gravity, 9.8m/s2, and h is height in meters (m).

Given/Known:

m = 10kg

h = 100m

g = 9.8m/s2

Equation:

PEgrav = (m)(g)(h)

Solution:

PEgrav = (10kg)(9.8m/s2)(100m) = 9800kg·m2/s2 = 9800 Joules

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9y ago

The object's potential energy is 352.8 joules.

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9y ago

The rock's potential energy is 49,000 joules.

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6y ago

Generically it has "potential" energy. The exact amount depends on the height of the hill and the mass of the bolder.

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13y ago

Use the formula PE = mgh, that is, multiply mass x gravity x height. Use 9.8 for gravity.

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10y ago

19,600 J

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Q: What is the energy of a boulder resting at the top of a hill?
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