An object of area 15sqcm and height 2 cm has a mass of 50g. what is its density in SI system
It depends on the shape, and what the area represents? Base? total area? does the object have volume?
idont know
I need ans of my ques
To find the density of an object, you need to know the mass and volume of the object. In this case, we are given the mass of the object, which is 50g, and the height of the object, which is 2 cm. However, we need to calculate the volume of the object first.
The volume of a three-dimensional object can be calculated by multiplying its area of the base by its height. In this case, the area of the base is given as 15 sqcm, and the height is given as 2 cm. So, the volume can be calculated as:
Volume = Area × Height = 15 sqcm × 2 cm = 30 cm³
Now that we have the mass of the object and its volume, we can calculate its density. Density is defined as the mass divided by the volume. In the SI system, the unit of mass is kilogram (kg), and the unit of volume is cubic meter (m³). However, since the given mass is in grams and the given volume is in cubic centimeters, we need to convert them to the appropriate SI units.
1 gram (g) = 0.001 kilogram (kg)
1 cubic centimeter (cm³) = 0.000001 cubic meter (m³)
Converting the mass to kilograms:
Mass in kg = 50 g × 0.001 kg/g = 0.05 kg
Converting the volume to cubic meters:
Volume in m³ = 30 cm³ × 0.000001 m³/cm³ = 0.00003 m³
Now, we can calculate the density:
Density = Mass/Volume = 0.05 kg / 0.00003 m³ = 1666.67 kg/m³
Therefore, the density of the object is 1666.67 kg/m³ in the SI system.