A 2-kg block rests on a wall that is 3 m tall. What is the gravitational potential energy of the block? The force of gravity on Earth (g) is equal to 9.8 m/s2.
PE = mgh
PE = 2 x 3 x 9.8
PE = 58.8J
A 2-kg block rests on a wall that is 3 m tall. What is the gravitational potential energy of the block? The force of gravity on Earth (g) is equal to 9.8 m/s2.
To find the gravitational potential energy of the block, we need to use the formula:
Potential Energy (PE) = mass x gravity x height
Given:
Mass of the block (m) = 2 kg
Height (h) = 3 m
Force of gravity (g) = 9.8 m/s^2
Now, substituting the given values into the formula:
PE = 2 kg x 9.8 m/s^2 x 3 m
Simplifying the equation:
PE = 58.8 kg m^2/s^2
Therefore, the gravitational potential energy of the block is 58.8 kg m^2/s^2.
To find the gravitational potential energy of the block resting on the wall, we need to use the formula:
Gravitational Potential Energy = mass * acceleration due to gravity * height
Given:
- Mass (m) = 2 kg
- Acceleration due to gravity (g) = 9.8 m/s^2
- Height (h) = 3 m
To calculate the gravitational potential energy, substitute these values into the formula:
Gravitational Potential Energy = 2 kg * 9.8 m/s^2 * 3 m
Now, let's do the calculation:
Gravitational Potential Energy = 2 * 9.8 * 3 = 58.8 Joules
Therefore, the gravitational potential energy of the block resting on the wall is 58.8 Joules.