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What is the gravitational potential energy of a 10 kg mass at a height of 5 m ab

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Question: What is the gravitational potential energy of a 10 kg mass at a height of 5 m above the ground? (g = 9.8 m/s²)

Options:

  1. 490 J
  2. 4900 J
  3. 98 J
  4. 980 J

Correct Answer: 490 J

Solution: 

Gravitational potential energy (U) is given by U = mgh = 10 kg * 9.8 m/s² * 5 m = 490 J.

What is the gravitational potential energy of a 10 kg mass at a height of 5 m ab

Practice Questions

Q1
What is the gravitational potential energy of a 10 kg mass at a height of 5 m above the ground? (g = 9.8 m/s²)
  1. 490 J
  2. 4900 J
  3. 98 J
  4. 980 J

Questions & Step-by-Step Solutions

What is the gravitational potential energy of a 10 kg mass at a height of 5 m above the ground? (g = 9.8 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) above the ground. Here, the height is 5 m.
  • Step 3: Identify the acceleration due to gravity (g). It is given as 9.8 m/s².
  • Step 4: Use the formula for gravitational potential energy, which is U = mgh.
  • Step 5: Substitute the values into the formula: U = 10 kg * 9.8 m/s² * 5 m.
  • Step 6: Calculate the result: 10 * 9.8 * 5 = 490 J.
  • Step 7: Conclude that the gravitational potential energy is 490 Joules.
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