A ball bearing is gently released from rest and allowed to fall through a viscous...
PHYSICS
WAEC 2000
A ball bearing is gently released from rest and allowed to fall through a viscous fluid. Which of the following statements about the motion is correct?
- A. its acceleration decreases before terminal velocity is attained
- B. when terminal velocity is attained the acceleration of the fluid becomes zero
- C. its velocity increases before terminal velocity is attained
- D. there is no resultant force on the ball before it attains terminal velocity
Correct Answer: B. when terminal velocity is attained the acceleration of the fluid becomes zero
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