An on-farm diesel fuel tank is on a stand 5 feet above the ground. The tank is vented to the atmosphere (the air in the tank is
1 answer:
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Answer:
d = 2 [m].
Explanation:
To solve this problem we must use the principle of conservation of energy, where the mechanical energy in a state plus the work done on the body, must be equal to the mechanical energy in the state E. This can be easily represented in the following equation.
where:
Ea = Mechanical energy in A [J]
Wa-e = Work among states a and e [J]
Ee = Mechanical energy in E [J].
The key to being able to understand this problem is that in state A, we only have kinetic energy, while the energy in state E is equal to zero (there is no movement). The work is equal to the product of force by distance, as work acts in the opposite direction to movement, this has a negative sign.