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Physics
8. Which of the following case has the highest magnitude of net force acting on the body?
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Q. 8. Which of the following case has the highest magnitude of net force acting on the body?
Laws of Motion
A
A drop of rain falling down with a constant speed.
B
A cork of mass $10\, g$ floating on water
C
A car moving with a constant velocity of $30\, km / h$ on a rough road.
D
An electron revolving with a constant speed inside a hydrogen atom
Solution:
A rotating electron has a centripetal acceleration, whereas all other cases have constant velocity or zero acceleration