The gravitational potential energy of two masses m1 and m2 separated by a distan

Practice Questions

Q1
The gravitational potential energy of two masses m1 and m2 separated by a distance r is given by which formula?
  1. -G(m1*m2)/r
  2. G(m1*m2)/r
  3. -G(m1+m2)/r
  4. G(m1+m2)/r

Questions & Step-by-Step Solutions

The gravitational potential energy of two masses m1 and m2 separated by a distance r is given by which formula?
  • Step 1: Understand that gravitational potential energy is the energy stored due to the position of two masses.
  • Step 2: Identify the two masses involved, which are m1 and m2.
  • Step 3: Recognize that the distance between the two masses is represented by r.
  • Step 4: Learn that G is a constant called the gravitational constant, which helps calculate the force of gravity.
  • Step 5: Combine these elements into the formula for gravitational potential energy: U = -G(m1*m2)/r.
  • Step 6: Note that the negative sign indicates that gravitational potential energy decreases as the masses get closer together.
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