Force on a wall due to fluid

Two identical billiard balls striks a rigid wall with the same speed but at different angles , and get reflected without any change in speed , as shown in Fig . What is (i) the direction of the force on the wall due to each ball ? (ii) the ratio of the magnitudes of impulses imparted to the balls by the wall ?

A rod of mass m is supported by string AB and friction due to wall. Then friction force on rod due to wall is : (g= acceleration due to gravity )

Consider the system as shown. The wall is smooth, but the surface of block A & B in contact is rough. The friction force on B due to A equilibrium is :

Figure shows a vertical wall of horizontal length L = 5.0 m and depth H = 3.0 m that is fully submerged in water , with its top surface of the water . What is the force on the wall due to the water pressure ?

Viscous force on a small sphere of radius r moving in a fluid varies directly with

A ball of mass m strikes a rigid wall with speed v and gets reflected without any loss of speed, as shown in the figure. (a) What is the magnitude of the impulse imparted to the ball by the wall? (b) What is the direction of the force on the wall due to the ball?

Cohesive force of water is due to

Force due to Fluid on Surface

Assertion: Force of bouyancy due to atmosphere on a small body is almost zero(or negligible). Reason: If a body is completely submerged in a fluid, then buoyant force is zero.

A block of mass 5 kg is held against a wall with a force of 100 N . as shown om figure. It is moved horizontally slowly by applying a force parallel to the wall. Then the fricational force on the block due to wall is 25x newton. Find x . (Given mu = 0.5 and g = 10 m//sec^(2) )