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The change in the height of the object is 5.1 m.
<h3>Conservation of mechanical energy</h3>
The principle of conservation of mechanical energy states that the total energy of an isolated system is always conserved.
The change in the height of the object is calculated by applying the principle of conservation of mechanical energy as follows;
P.E = K.E

Thus, the change in the height of the object is 5.1 m.
Learn more about conservation of mechanical energy here: brainly.com/question/6852965
Answer:
100 m/s²
Explanation:
50 N / 500 g = 50 N / 0.500 kg = 100 m/s²
When one mass accelerates another mass the later mass is felt as weight or force.For example, if you push two objects under the same conditions with the same amount of force, the object with the lower mass will accelerate faster.
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