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PHYSICS

JAMB 2022 - Question 37

Physics 2022 JAMB Past Questions - Question 37: Find the potential energy of an object of mass 10kg placed on a building floor 10m above the ground level. [g=10m-2]

Choose the correct answers from the options given.

Find the potential energy of an object of mass 10kg placed on a building floor 10m above the ground level. [g=10m-2]

A: 10,000J

B: 5,000J

C: 100J

D: 1000J

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Correct Answer

Explanation

The potential energy of an object near the surface of the Earth can be calculated using the formula:

Potential Energy = mass * acceleration due to gravity * height

In this case, the mass of the object is 10 kg, the height is 10 m, and the acceleration due to gravity is approximately 9.81 m/s^2.

So, the potential energy of the object is:

Potential Energy = 10 kg * 9.81 m/s^2 * 10 m = 981 Joules