Question

# If the unit of force is $$1$$ KN, unit of length is $$1$$ Km and the unit of time is $$100$$ s in a- new system, then the new unit of mass is :

A
1000 kg
B
1 kg
C
10,000 kg
D
100 kg

Solution

## The correct option is C $$10,000$$ kg$$Force =M^{1}L^{1}T^{-2}$$$$1000 N=(kg)\times \dfrac{(1000)mt}{(100)^{2}s^{2}}$$$$Mass(Kg)=\dfrac{1000\times(100)^{2}}{1000}=10000kg$$Physics

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