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A 10 kg mass is lifted to a height of 5 m. What is the potential energy gained?

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Question: A 10 kg mass is lifted to a height of 5 m. What is the potential energy gained? (Take g = 10 m/s²)

Options:

  1. 50 J
  2. 100 J
  3. 150 J
  4. 200 J

Correct Answer: 100 J

Solution: 

Potential energy PE = mgh = 10 kg * 10 m/s² * 5 m = 500 J.

A 10 kg mass is lifted to a height of 5 m. What is the potential energy gained?

Practice Questions

Q1
A 10 kg mass is lifted to a height of 5 m. What is the potential energy gained? (Take g = 10 m/s²)
  1. 50 J
  2. 100 J
  3. 150 J
  4. 200 J

Questions & Step-by-Step Solutions

A 10 kg mass is lifted to a height of 5 m. What is the potential energy gained? (Take g = 10 m/s²)
  • Step 1: Identify the mass (m) of the object. In this case, the mass is 10 kg.
  • Step 2: Identify the height (h) to which the mass is lifted. Here, the height is 5 m.
  • Step 3: Identify the acceleration due to gravity (g). We are given g = 10 m/s².
  • Step 4: Use the formula for potential energy (PE), which is PE = mgh.
  • Step 5: Substitute the values into the formula: PE = 10 kg * 10 m/s² * 5 m.
  • Step 6: Calculate the potential energy: 10 * 10 * 5 = 500 J.
  • Potential Energy – The energy possessed by an object due to its position in a gravitational field, calculated using the formula PE = mgh.
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