Question

6. (i) Define: 1 kg-wt or 1kg-f (ii) How is it related to the SI unit of force(newton)​

Answer 1

Answer:

One kilogram weight is the force exerted on an object of mass 1 kg by the earth

We have,

The weight of an object, W = mg,    where m is the mass and g the acceleration due to gravity

W= (1kg) (9.8 m/s2 )

1 kg-Weight= 9.8 N

The S.I. unit of force is Newton, the absolute unit of force in the International System of Units (SI units). It is defined as that force necessary to provide a mass of one kilogram with an acceleration of one metre per second per second.

S.I. unit of Force = Mass(kg)×AccelerationduetoGravity(g)(9.8m/s2  ) = Newton

Force (Newton) = Mass x g  

For example, The weight (force) of a mass of 1 kg = 1 x 9.8 = 9.8 N

Hence, 1 kgf = 9.8 N

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Explanation:

Answer 2

Answer:- One kilogram-force is the force due to gravity on a mass of 1 kg.

1 kgf = force due to gravity on a mass of 1 kg = mass 1 kg x acceleration due to gravity (g) m/s2

Since the average value of g is 9.8 m/s2
SI unit of force is Newton.

1 kgf = 9.8 N
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