Momentum and CollisionHard
Question
A large cylindrical tank of cross-sectional area 1m2 is filled with water. It has a small hole at a height of 1 m from the bottom. A movable postilion of mass 5 kg is fitted on the top of the tank such that it can side in the tank freely. A load of 45 kg is applied on the top of water by piston, as shown in figure. The value of v when piston is 7m above the bottom is (g = 10 m/s2)
Options
A.
m/s
m/sB.10 m/s
C.1 m/s
D.11 m/s
ρv2 = ρgh + 
⇒ 
= 
= 11m/sMore Momentum and Collision Questions
A piece of cork starts from rest at the bottom of a lake and floats up. Its velocity v is plotted against time t. Which ...The moment of inertia a regular circular disc of mass 0.4 kg and radius 100 cm about an axis per5pendicular to the plant...Three particle start from origin at the same time with a velocity 2ms-1 along positive x-axis, the second with a velocit...Object A strikes stationary object B with given speed u head-on in an elastic collision. The mass of A is fixed; you may...A capillary tube (A) is dropped in water. Another identical tube (B) is dipped in a soap water solution. Which of the fo...