What is the acceleration due to gravity at a height equal to the radius of the E

Practice Questions

Q1
What is the acceleration due to gravity at a height equal to the radius of the Earth?
  1. g/2
  2. g/3
  3. g/4
  4. g/5

Questions & Step-by-Step Solutions

What is the acceleration due to gravity at a height equal to the radius of the Earth?
  • Step 1: Understand that 'g' is the acceleration due to gravity at the surface of the Earth.
  • Step 2: Recognize that 'h' is the height above the Earth's surface, and in this case, it is equal to the radius of the Earth (R).
  • Step 3: Use the formula for gravity at a height: g' = g / (1 + h/R)².
  • Step 4: Substitute h with R in the formula: g' = g / (1 + R/R)².
  • Step 5: Simplify the equation: g' = g / (1 + 1)² = g / (2)².
  • Step 6: Calculate (2)², which is 4: g' = g / 4.
  • Step 7: Conclude that the acceleration due to gravity at a height equal to the radius of the Earth is g/4.
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