In general, the potential energy can be calculated by the formula:
E = M x G x H,
where M is the mass of the load, H is the height, G is the acceleration of gravity.
H = E / (M x G).
Substitute the values and get the result:
H = 40 / (5 x 9.8);
H ≈ 0.82 (m).
Answer: in order for the potential energy to increase by 40 Joules, you need to raise this weight to a height of approximately 0.82 meters.
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