If the mass of a body is $5 k g$ , its weight on the surface of Earth would be: (Take $g = 9.8 m s^{- 2}$ )

49 N

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60 N

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50 N

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70 N

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Solution

The correct option is A $49 N$
Given, mass of a body $m = 5 k g$ and acceleration due to gravity $g = 9.8 m s^{- 2}$ .
As we know, weight,
$W = m \times g = 5 \times 9.8 = 49 N$
Therefore, weight on the surface of the earth would be $49 N$ .

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