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Q: The weight of a body at the center of the Earth will be:
  • A. zero
  • B. infinite
  • C. as much as on the surface of the earth
  • D. None of the above
Correct Answer: Option A - Gravitational acceleration at the center of the Earth is zero (g = 0). So, the weight on the center of the earth will be zero (i.e. w = 0) But the mass of the object will never be zero. The value of g at the poles and at the equator respectively is maximum and minimum.
A. Gravitational acceleration at the center of the Earth is zero (g = 0). So, the weight on the center of the earth will be zero (i.e. w = 0) But the mass of the object will never be zero. The value of g at the poles and at the equator respectively is maximum and minimum.

Explanations:

Gravitational acceleration at the center of the Earth is zero (g = 0). So, the weight on the center of the earth will be zero (i.e. w = 0) But the mass of the object will never be zero. The value of g at the poles and at the equator respectively is maximum and minimum.