Physics

Calculate the weight of a body of mass 10 kg in (a) kgf and (b) newton. Take g = 9.8 m s^-2

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(i) As we know,

Weight = mg

Given,

m = 10 kg

g = 9.8 m s^-2

As m s^-2 can be written as N kg^-1,

So, g = 9.8 N kg^-1

Substituting the values in the formula above, we get,

$W = 10 \times 9.8 \\[0.5em] W = 98 N\\[0.5em]$

As 9.8 N = 1 kgf,

Hence, 98 N = 10 kgf

Therefore, weight in kgf = 10 kgf

(ii) Weight in newton = 98 N

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