A steel ball is falling through glycerin. Which of the following factors does not directly affect its terminal velocity?
The radius of the steel ball
The viscosity of glycerin
The density of steel
The height from which it is dropped
Related Questions
A small sphere and a large sphere, both made of the same material, are dropped from the same height in air. Which sphere will reach terminal velocity first?
The small sphere
The large sphere
They reach terminal velocity at the same time
It depends on the exact size difference between the spheres
If two ping pong ball are suspended near each other and a fast stream of air is produced within the space of the balls, the balls
Come nearer to each other
Move away from each other
Remain in their original positions
Move far away
Aerofils are so designed that the speed of air
On top side is more than on lower side
On top side is less than on lower side
Is same on both sides
Is turbulent
Aerofils are so designed that the speed of air
On top side is more than on lower side
On top side is less than on lower side
Is same on both sides
Is turbulent
When an object reaches terminal velocity, its acceleration is:
0 m/s²
9.8 m/s²
Constant but not 0
Continuously increasing
An object falling freely in a vacuum experiences constant acceleration due to gravity. However, an object falling through a fluid eventually reaches a terminal velocity. This difference in behavior is primarily due to:
The change in the gravitational force acting on the object as it falls through the fluid.
The buoyant force exerted by the fluid on the object.
The presence of a resistive force proportional to the object's velocity in the fluid.
The decrease in the object's mass as it falls through the fluid.
Choose the correct statement(s) for a cricket ball that is spinning clockwise through air
S1 : Streamlines of air are symmetric around the ball
S2 : The velocity of air above the ball relative to it is larger than that below the ball
S3 : The velocity of air above the ball relative to it is smaller than that below the ball
S4 : There is a net upward force on the ball
S1, S2 and S4
S2 and S4
S4 only
S3 only
Two rain drops reach the earth with different terminal velocities having ratio 9:4. Then the ratio of their volume is
A tiny metal sphere of radius falls from rest in a highly viscous fluid. When the sphere achieves terminal velocity, the rate at which heat is generated due to the viscous drag force is proportional to which power of the radius?
r
r^2
r^3
r^5
Two identical spheres are dropped from the same height, one in air and the other in a vacuum. Which sphere will reach a greater terminal velocity?
The sphere in air
The sphere in a vacuum
Both spheres will reach the same terminal velocity
The sphere in a vacuum will not reach a terminal velocity
