The diameter of a lead ball is 2.1 cm. The density of the lead used is of
11.34g/cm^3. What is the weight of the ball in kgs
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Answer: The weight of the ball in kgs would be 0.055 kg.
Step-by-step explanation:
Given that,
The diameter of the lead ball, d= 2.1 cm
Radius, r= d/2= 2.1/2= 1.05 cm
Density of lead= 11.34g/cm^3
Applying the formula of volume of sphere
V= 4/3*pi*r^3
Plugging the value of r in the above equation,
V= 4/3*22/7*1.05^3
V= 4/3*22/7*1.05*1.05*1.05
V= 4.851 cm^3
using the formula of density,
Density= mass/volume
mass= Density*volume
Plugging the value of density and volume of the lead ball, we get:
Weight(mass)= 11.34*4.851= 55.010g
Weight in kgs= 55.010/1000= 0.055 kg
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