How much potential energy does a 20-kg barrel have when it is in the truck whose floor is 5.0 m above the ground?
Mass x height x (acceleration of gravity) = 20 x 9.8 x 5.0 = ___
Your answer will be in Joules
How much potential energy does a 20-kg barrel have when it is in the truck whose floor is 5.0 m above the ground?
To calculate the potential energy of the barrel, we need to use the formula:
Potential Energy = Mass * Acceleration due to gravity * Height
In this case, the mass of the barrel is 20 kg, the height is 5.0 m, and the acceleration due to gravity is approximately 9.8 m/s^2.
So, plugging in the values into the formula, we have:
Potential Energy = 20 kg * 9.8 m/s^2 * 5.0 m
Now, let's calculate the potential energy using a calculator:
Potential Energy = 980 J
Therefore, the 20-kg barrel has 980 Joules of potential energy when it is in a truck whose floor is 5.0 m above the ground.