A solid ball of radius r is dropped in viscous liquid- Acceleration a of ball after falling a long time is A- a - g -2 downwardB- a - g downward C- a -0D- a-g upward

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Standard XII

Physics

Instantaneous Velocity

A solid ball ...

Question

A solid ball of radius $r$ is dropped in viscous liquid. Acceleration $\to a$ of ball after falling a long time is

a = \frac{g}{2}

(downward)

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a = g

(downward)

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a = 0

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a = g

(upward)

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Solution

The correct option is C $a = 0$
At terminal speed
$a = 0$

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A solid ball of radius r is dropped in viscous liquid. Acceleration →a of ball after falling a long time is

The correct option is C a=0At terminal speed a=0

A solid ball of radius $r$ is dropped in viscous liquid. Acceleration $\to a$ of ball after falling a long time is

The correct option is C $a = 0$
At terminal speed
$a = 0$