Physics
JAMB 2009
The terminal velocity of a ball-bearing falling through a viscous fluid is reached when the?
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A.
upthrust is equal to the weight of the ball
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B.
ball accelerate uniformly
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C.
upthrust is equal to the velocity of the ball
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D.
velocity is uniform
Correct Answer: Option D
Explanation
At vt = terminal velocity
= zero acceleration
= uniform velocity
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