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GK QUESTION#3039

Which of the following equations correctly represents the formula used to determine the weight of a body under gravity?

  1. AW = m + g
  2. BW = m × gCorrect answer
  3. CW = m ÷ g
  4. DW = m × g × g
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Answer

B. W = m × g

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Explanation

The magnitude of gravitational weight is W = mg, where m is mass and g the local gravitational acceleration. Weight is measured in newtons and varies with g; adding m and g is dimensionally invalid.

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