Find the force exerted by the water on a `2m^2` plane surface of a large stone placed at the bottom of a sea 500 m deep. Does the force depend on the orientation of the surface? Neglect the size of the stone in comparison to the depth of the sea.

What is filled in a rectangular tank of size 3 m xx 2 m xx 1 m . (a) Find the total force exerted by the water on the bottom surface of the tank. (b) Consider a vertical side of area 2 m xx 1 m . Take a horizontal strip of width delta x metre in this side, situated at a depth of x metre from the surface of water. Find the force by the water on this strip. ( c) Find the torque of the force calculated in part (b) about the bottom edge of this side. (d) Find the total force by the water on this side. ( e) Find the total torque by the water on the side about the bottom, edge. Neglect the atmospheric pressure and take g = 10 m//s^2 .

2 joules of work is done in displacing a stone through 0.5 m. Find the force applied on the stone.

Water is filled in a rectangular tank of size 3mxx2mxx1m . a) Find the total force exerted by the water on the bottom surface of the tank. b) Consider a vertical side of area 2mxx1m . Take a horizontal strip of wide deltax metre in this side, situated at a depth of x metre from the surface of water.Find the force by the water on this strip. c) Find the torque of the force calculate in part b) about the bottom edge of this side. d) Find the total force by the water on this side. e) Find the total torque by the water on the side about the bottom edge. neglect the atmospheric pressure and take =10ms^-2 .

Water is filled in a rectangular tank of size 3mxx2mxx1m . a) Find the total force exerted by the water on the bottom surface of the tank. b) Consider a vertical side of area 2mxx1m . Take a horizontal strip of wide deltax metre in this side, situated at a depth of x metre from the surface of water.Find the force by the water on this strip. c) Find the torque of the force calculate in part b) about the bottom edge of this side. d) Find the total force by the water on this side. e) Find the total torque by the water on the side about the bottom edge. neglect the atmospheric pressure and take =10ms^-2 .

A steel ball is placed on the surface of water in a deep tank. Water exerts a resistive force which is proportional to the velocity of the ball. The steel sinks into the water:

Surface of the lake is at 2^(@)C and depth of the lake is 20m find the temperature of the bottom of the lake

Assertion : The pressure at the bottom of the sea is lesser than that near the surface. Reason : The pressure exerted by a liquid depends upon the depth of the liquid and density of the liquid.