If the unit of force is 1N, the unit of work done is 20 J and the unit of time is 1 second, the unit of mass is

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10Kg

1Kg

0.05Kg

100Kg

answer is C.

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Detailed Solution

W=F.L 20 J = 1 N L20 Nm =1 NL L= 20 mF=MLT−21 N=M20 m(1s)−21 Kg m s-2 =M 20 m1 s-2M=120=0.05Kg

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