Question

If the unit of force is 1 kN the length is 1 km and time 100 s, what will be the unit of mass?

• A. 1000kg
• B. 1kg
• C. 10000kg
• D. 100kg

Answer 1

Answer: (C)

Let $x$ kg be unit of mass, then $F={(xkg)}^1{(1000m)}^1{(100s)}^{-2}$ $1000=x\times 1000\times \frac{1}{10000}$ $x=10000kg$ $x={10}^{4}kg$