The terminal velocity of a ball-bearing falling through a viscous fluid is reached when the?
A
upthrust is equal to the weight of the ball
B
ball accelerate uniformly
C
upthrust is equal to the velocity of the ball
D
velocity is uniform
Verified Correct Answer: D.
Physical Principles & Numerical Solution
At vt = terminal velocity
= zero acceleration
= uniform velocity
Source: WAEC / JAMB / NECO Classroom Archive (Record #14499)