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If the mass of an object is 10 kg and it is located at a point where the gravita

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Question: If the mass of an object is 10 kg and it is located at a point where the gravitational potential is -30 J/kg, what is the gravitational potential energy of the object?

Options:

  1. -300 J
  2. -30 J
  3. 300 J
  4. 30 J

Correct Answer: -300 J

Solution: 

Gravitational potential energy U = m * V = 10 * (-30) = -300 J.

If the mass of an object is 10 kg and it is located at a point where the gravita

Practice Questions

Q1
If the mass of an object is 10 kg and it is located at a point where the gravitational potential is -30 J/kg, what is the gravitational potential energy of the object?
  1. -300 J
  2. -30 J
  3. 300 J
  4. 30 J

Questions & Step-by-Step Solutions

If the mass of an object is 10 kg and it is located at a point where the gravitational potential is -30 J/kg, what is the gravitational potential energy of the object?
  • Step 1: Identify the mass of the object. In this case, the mass (m) is 10 kg.
  • Step 2: Identify the gravitational potential (V) at the location of the object. Here, the gravitational potential is -30 J/kg.
  • Step 3: Use the formula for gravitational potential energy (U), which is U = m * V.
  • Step 4: Substitute the values into the formula: U = 10 kg * (-30 J/kg).
  • Step 5: Calculate the result: U = -300 J.
  • Gravitational Potential Energy – Gravitational potential energy (U) is calculated using the formula U = m * V, where m is the mass of the object and V is the gravitational potential.
  • Gravitational Potential – Gravitational potential (V) is the potential energy per unit mass at a point in a gravitational field, expressed in joules per kilogram (J/kg).
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