Momentum and CollisionHard
Question
Water stands up to a height h behind the vertical wall of a dam. What is the net horizontal force pushing the dam down by the stream, if width of the dam is s ? (r = density of water ) : -
Options
A.2hσg
B.
C.
D.
Solution
Pressure on the wall = 
Net horizontal force
= P × area =
Net horizontal force
= P × area =
Create a free account to view solution
View Solution FreeMore Momentum and Collision Questions
One end of uniform wire of length L and of weight W is attached rigidly to a point in the roof and a weight W1 is suspen...When a large bubble rises from the bottom of a lake to the surface, its radius doubles. If atmospheric pressure is equal...A hammer of mass M strikes a nail of mass m with velocity of v ms-1 and drives it ′a′ metre into fixed block...Three interacting particles of masses 100 g, 200 g and 400 g each have a velocity of 20 m/s magnitude along the positive...If a capillary of radius r is dipped in water, the height of water that rises in it is h and its mass is M. If the radiu...