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What is the gravitational potential energy of a 2 kg mass at a height of 10 m ab

Practice Questions

Q1
What is the gravitational potential energy of a 2 kg mass at a height of 10 m above the ground? (g = 9.8 m/s²)
  1. 196 J
  2. 98 J
  3. 20 J
  4. 0 J

Questions & Step-by-Step Solutions

What is the gravitational potential energy of a 2 kg mass at a height of 10 m above the ground? (g = 9.8 m/s²)
Correct Answer: 196 J
  • Step 1: Identify the mass (m) of the object. In this case, the mass is 2 kg.
  • Step 2: Identify the height (h) above the ground. Here, the height is 10 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 = 2 kg * 9.8 m/s² * 10 m.
  • Step 6: Calculate the result: 2 * 9.8 * 10 = 196 J.
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