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The weight of a 10 kg mass on Earth is 98 N. What will be its weight on a planet with surface gravity 2.5 m/s²?

easy MCQ 1 mark Class 9 · Science · Gravitation
  1. 25 N
  2. 40 N
  3. 49 N
  4. 98 N
Answer
25 N

The correct answer is 25 N — Step 4: The correct option is 25 N.

Step-by-step solution

  1. Step 1: Weight is calculated using , where is mass and is surface gravity.
  2. Step 2: Substitute and into the formula.
  3. Step 3: Compute .
  4. Step 4: The correct option is 25 N.
Common mistake: Multiplying by incorrect surface gravity or confusing mass with weight

Concept tested: Weight calculation on different planet

Published · How this solution was prepared and checked

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