With what minimum speed $v$ must a small ball should be pushed inside a smooth vertical tube from a height $h$ so that it may reach the top of the tube? Radius of the tube is $R$.

Q. With what minimum speed $v$ must a small ball be pushed inside a smooth vertical tube from a height $h$ so that it may reach the top of the tube? Radius of the tube is $R$. (Assume radius of the ball is very small).

Q. The minimum speed ball should have inside a smooth vertical tube when released from a height of $h=2\text{cm}$ as shown in the figure so that it may reach the top of the tube is
(Take $g=10m/s^2$)

Q. The minimum speed ball should have inside a smooth vertical tube when released from a height of $h=2\text{cm}$ as shown in the figure so that it may reach the top of the tube is
(Take $g=10m/s^2$)

Q. A small ball is pushed from a height h along a smooth hemispherical bowl of radius R. With what speed should the ball be pushed so that it just reaches the top of the opposite end of the bowl?

Q. When a capillary tube is dipped in a liquid, the liquid rises to a height $h$ in the tube. The free liquid surface inside the tube is hemispherical in the shape. The tube is now pushed down so that the height of the tube outside the liquid is less than $h$.