a)a box having mass of 500kg is placed on a horizontal surface.find the pressure exerted on the surface?do not forget to write formula.
b)a pond of water filled with water upto 60m.1)write formula to find the pressure of water exerted on the base of pond.2)calculate the pressure exerted by the water on the base of pond?desity of water is 1000kg/m3.
3)half of the water was removed from the pond.what could be the effect of pressure on the base of pond?statement__________
reason______________
a) The formula to calculate pressure is:
Pressure = Force / Area
In this case, the force exerted by the box on the surface is the weight of the box, which is given by:
Weight = mass * gravity
Where mass is given as 500 kg and gravity is approximately 9.8 m/s².
So, the weight of the box will be:
Weight = 500 kg * 9.8 m/s²
Now, to find the pressure, we need to divide the weight by the area of the surface on which the box is placed. Let's assume the area is A.
Pressure = Weight / A
You will need to figure out the area on which the box is placed to get the value for pressure.
b) 1) The formula to calculate the pressure exerted by a fluid is:
Pressure = density * gravity * height
In this case, since the pond is filled with water up to a height of 60 m, the pressure exerted by the water on the base of the pond will be:
Pressure = density * gravity * height
Where density is given as 1000 kg/m³, gravity is approximately 9.8 m/s², and height is 60 m.
2) To calculate the pressure exerted by the water on the base of the pond, we substitute the given values into the formula:
Pressure = 1000 kg/m³ * 9.8 m/s² * 60 m
Performing the calculation will give you the pressure exerted by the water on the base of the pond.
3) When half of the water is removed from the pond, the height of the water column decreases. As a result, the pressure exerted by the water on the base of the pond will also decrease. The statement can be:
"The pressure on the base of the pond decreases when half of the water is removed."
The reason for this is that pressure increases with depth in a fluid. By reducing the height of the fluid column, we reduce the depth, and therefore, the pressure exerted by the water.