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CBSE Class 11-science Answered

If the unit of force is kN,the length is 1 km and the time taken100s, then what will be the unit of the mass ?
Asked by Diyakrishnakrupa8 | 09 May, 2019, 09:34: PM
answered-by-expert Expert Answer
Let new unit of force is N '  = kN
       new unit of length  m'  =  km
       new unit of time     s'    = 100s
        new unit of mass kg'   
 
new units of Force = N '  = kg' × m' × s' -2 
 
hence new unit of mass = kg' =  ( N ' × s' 2 ) / m'  = ( kN × 104 s2 ) /km = 104 N / [ m s-2 ]  = 104 kg
 
new unit of mass = 104 kg
Answered by Thiyagarajan K | 09 May, 2019, 09:58: PM
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