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  • The velocity of a small ball of mass M and density d,when dropped in a container filled with glycerine becomes constant after some time.if the density of glycerine is <img alt="\frac{d}{2}" src="/l

The velocity of a small ball of mass M and density d,when dropped in a container filled with glycerine becomes constant after some time.if the density of glycerine is \frac{d}{2},then the viscous force acting on the ball will be:

Option: 1

\frac{Mg}{2}


Option: 2

Mg


Option: 3

\frac{3}{2}Mg


Option: 4

2Mg


Answers (1)

best_answer

Mg=dvg

B=\frac{d}{2}\times vg=\frac{Mg}{2}

F_{v}\rightarrow viscous\: force

B+F_{v}=Mg

F_{v}=Mg-\frac{mg}{2}

F_{v}=\frac{mg}{2}

Posted by

Ritika Jonwal

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