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 2 d , then the viscous force acting on the ball will be
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 2 d , then the viscous force acting on the ball will be

(1) 2Mg

(2) Mg

(3) 3Mg/2

(4) 2Mg

Solution: Answer (1)

According to the question, Mass = M

The density of ball = d

The density of glycerine = d/2

Then, we have: