STANDARD Physics Average Speed MCQ Question
A vehicle travels half the distance L with speed v₁ and the other half with speed v₂, then its average speed is
v₁ + v₂ / 2
2v₁v₂ / v₁ + v₂
2v₁v₂ / (v₁ + v₂)
L(v₁ + v₂) / v₁v₂
Correct Answer
Detailed Explanation
The time taken to travel each half of the distance is calculated separately, and the total time is the sum of these. The average speed is the total distance divided by the total time taken, which simplifies to 2v₁v₂ / (v₁ + v₂).
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