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A 50 kilogram sack of rice is raised to 5 meter tall shelf. How much Gravitational Potential Energy it possesses if the acceleration due to gravity (g) is 9.8 m/s2?

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SAMA3LIN

Given: m = 50kg

h = 5m

g = 9.8m/s²

Unknown: U = ?

Formula: U = mgh

where in, U = gravitational energy

m = mass

g = gravitational field

h = height

Solution:

U = mgh

= (50kg)(9.8m/s²)(5m)

= 2450J

Note: Unit for gravitational potential energy is Joules (J).

Final Answer: U = 2450J

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