Physics - NLM Question with Solution | TestHub
PhysicsNLMMiscellaneousEasy2 minQB
PhysicsEasysingle choice
A student's life was saved in an automobile accident because an air bag expanded in front of his head. If the car had not been equipped with an air bag, the windshield would have stopped the motion of his head in a much shorter time. Compared to the windshield, the air bag :
Options:
Answer:
C
Solution:
The air bag and the windshield stop the head from the same velocity to zero, so the change in momentum (impulse) is the same.
is constant. The air bag increases the stopping time, so the average force decreases.
Answer: (C).
Stream:JEESubject:PhysicsTopic:NLMSubtopic:Miscellaneous
⏱ 2mℹ️ Source: QB
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