What is the gravitational potential energy of a 5kg object resting 3m above the ground?
50
The gravitational potential energy of an object can be calculated using the formula:
Gravitational Potential Energy = mass x gravitational acceleration x height
Given:
Mass (m) = 5 kg
Height (h) = 3 m
Gravitational acceleration (g) = 9.8 m/s^2 (approximate)
Substituting the given values into the formula:
Gravitational Potential Energy = 5 kg x 9.8 m/s^2 x 3 m
Calculating this expression:
Gravitational Potential Energy = 147 J (joules)
Therefore, the gravitational potential energy of a 5kg object resting 3m above the ground is 147 Joules.
To calculate the gravitational potential energy of an object, we can use the formula:
Gravitational Potential Energy = mass × gravitational acceleration × height
In this case, the mass of the object is 5 kg, and the height is 3 m. The gravitational acceleration is approximately 9.8 m/s² on Earth.
Now, let's calculate the gravitational potential energy:
Gravitational Potential Energy = 5 kg × 9.8 m/s² × 3 m
First, multiply 5 kg by 9.8 m/s²:
Gravitational Potential Energy = 49 N × 3 m
Next, multiply 49 N by 3 m:
Gravitational Potential Energy = 147 J
Therefore, the gravitational potential energy of a 5 kg object resting 3 m above the ground is 147 Joules.