A small ball of mass M and density p is dropped in a viscous liquid of density 
. After some time, the ball falls with a constant velocity. What is the viscous force on the ball?
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
The buoyant force is given by
where V is the volume of the ball. The weight of the ball
W = Mg = 
, is acting in the opposite direction of the buoyant force . Hence, at terminal velocity
Mg-B = F v
B + F v = Mg
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
A Spherical ball of radius 1mm and density 10.5 g/cc is dropped in glycerine of coefficient of visc…
A spherical drop of liquid splits into 1000 identical spherical drops. If u i is the surface energy…
A metal block of base area 0.20 m 2 is placed on a table, as shown in figure. A liquid film of thic…
The surface of water in a water tank of cross section area 750 cm 2 on the top of a house is h m. a…
An air bubble of diameter 6 mm rises steadily through a solution of density 1750 kg m -3 at the rat…
Figure below shows a liquid being pushed out of the tube by a piston having area of cross section 2…