Q.

In a particular system, the units of length, mass and time are chosen to be 10 cm, 10 g and 0.1 s respectively. The unit of force in this system will be equivalent to:

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a

0.1 N

b

10N

c

100N

d

1N

answer is A.

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Detailed Solution

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[Force] =[MLT-2 ]
⇒ unit of force = (10g) (10cm) (0.1 s)-2
= 10 x 10-3kg) (10 x 10-2m) (0.1 s)-2
=·0.1 kg m s-2
=0.1N

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In a particular system, the units of length, mass and time are chosen to be 10 cm, 10 g and 0.1 s respectively. The unit of force in this system will be equivalent to: