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Work is Force X Distance. The force is equal to mass X acceleration (F=MA). In this case the acceleration is gravity, which is 9.81 m/s^2. So you multiply 500 by 9.81 to get 4905 Newtons (N). This is the amount of force required to lift the safe. Multiply this force by the distance, which in this case is 90 meters. This gives you 441450 Newton Meters (N*m) of work. 1 N*m is equivalent to 1 Joule (J), so the answer can be written as 441450 Joules (J).
Length-Meters
Mass-Kilogram
Liquid Volume- Liters
<h2>
Answer: approx. 1.625 m/s²</h2>
<h3>
Explanation:</h3>
The acceleration due to gravity on the surface of the Moon is approximately 1.625 m/s².
Compare that to the surface of the earth which is approximately 9.8 m/s². That makes the acceleration on the moon about 16.6% that on Earth's surface.