A 5 kg object is lifted to a height of 10 m. What is the potential energy gained
Practice Questions
Q1
A 5 kg object is lifted to a height of 10 m. What is the potential energy gained by the object?
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Questions & Step-by-Step Solutions
A 5 kg object is lifted to a height of 10 m. What is the potential energy gained by the object?
Correct Answer: 490 J
Step 1: Identify the mass of the object. In this case, the mass (m) is 5 kg.
Step 2: Identify the height to which the object is lifted. Here, the height (h) is 10 m.
Step 3: Identify the acceleration due to gravity. The standard value is approximately 9.8 m/s².
Step 4: Use the formula for potential energy (PE), which is PE = mgh.
Step 5: Substitute the values into the formula: PE = 5 kg * 9.8 m/s² * 10 m.
Step 6: Calculate the result: 5 * 9.8 * 10 = 490 J.
Step 7: Conclude that the potential energy gained by the object is 490 Joules.
Potential Energy – Potential energy is the energy stored in an object due to its position in a gravitational field, calculated using the formula PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.
