In a particular system, the unit of length, mass and time are chosen to be 10cm,10gm and 0.1s respectively. The unit of force in this system will be equivalent to
A
1/10N
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B
1N
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C
10N
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D
100N
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Solution
The correct option is A1/10N We know,
1N=1Kg×1m1−s2 1N=1000g×100cm1−s2
1N=100×(10g)×10×(10cm)10×(0.1s)×10×(0.1s)
1N=10Fnew, where Fnew is the new unit of force. Fnew=110N