Physics - NLM Question with Solution | TestHub
PhysicsNLMSimple Application of NLMMedium2 minQB
PhysicsMediumsingle choice
A ball is tossed straight up, reaches a highest point, and falls back down. Air resistance is not negligible. Which of the following statements are true? I. The ball's speed is zero at the highest point. II. The ball's acceleration is zero at the highest point. III. The ball takes a longer time to travel up to the highest point than to fall back down.
Options:
Answer:
A
Solution:
At the highest point the speed is zero, so statement I is true.
There the ball still feels gravity (and no drag), so its acceleration is , not zero. II is false.
With air resistance, drag and gravity both act downwards on the way up, so the ascent is faster than the descent. III is false.
Only I is true.
Stream:JEESubject:PhysicsTopic:NLMSubtopic:Simple Application of NLM
⏱ 2mℹ️ Source: QB
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