ICSE Class 8 Answered
numericals:
you have a lock with a volume of 15cm3 mass of 45 kg . what is the density
Asked by rainikita525 | 16 Apr, 2020, 12:16: PM
Density, ρ = mass/volume.
Given :- Volume, V = 15 cm3 = 1.5 ×10-5 m3 (Convert volume from CGS unit to SI unit)
Mass, m = 45 kg
![D e n s i t y space o f space l o c k comma
space rho space equals m over V space equals space fraction numerator 45 over denominator open parentheses 1.5 cross times 10 to the power of negative 5 end exponent close parentheses end fraction equals space 30 cross times 10 to the power of 5 space k g divided by m cubed space equals space 3 space cross times space 10 to the power of 6 space k g divided by m cubed space](https://images.topperlearning.com/topper/tinymce/cache/84eb68a1f523fbfaf7ae848d5ba34770.png)
Thus, density of the lock is 3×106 kg/m3
Answered by Shiwani Sawant | 16 Apr, 2020, 12:58: PM
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