UPSC Prelims 1999·GS1·science-and-technology·science and technology

A hunter aims his gun at a point between the eyebrows of a monkey sitting on a branch of a tree. Just as he fires, the monkey jumps down. The bullet will

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  1. Ahit the monkey at the point aimedCorrect
  2. Bhit the monkey below the point aimed
  3. Chit the monkey above the point aimed
  4. Dmiss the monkey altogether

Explanation

The correct answer is A because of the effect of gravity on both the bullet and the monkey. When the gun is fired, gravity begins to pull the bullet downward from its straight line path. At the exact same moment, the monkey begins to free fall from the branch due to the same force of gravity. Since both the bullet and the monkey are subject to the same gravitational acceleration, they both fall by the same vertical distance in the same amount of time. Because the hunter originally aimed directly at the monkey, the bullet will drop just enough to meet the monkey at its new, lower position. Therefore, the bullet will still hit the monkey at the point aimed, regardless of the bullet's speed or the distance involved, provided the monkey is within the gun's range.
science-and-technology: A hunter aims his gun at a point between the eyebrows of a monkey sitting on a branch of a tree. Just as he fires, the m

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