A question in GATE 2012 Metallurgical Engineering Paper with Solution has been updated:
Common Data for Questions 48 and 49:
A steel ball (density
= 7200
is placed in an upward moving liquid Al (density
, viscosity
Pa.s and Reynolds number =
. The force (F) exerted on the steel ball is expressed as
where, f is friction factor (=0.2), v is the velocity of liquid Al and R is the radius of steel ball.
The force exerted on the steel ball is
- 0.52 N
- 1.67 N
- 8.32 N
- 6.70 N
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