If the mass of a body is $5 k g,$ its weight on the surface of the earth would be ___. [Take acceleration due to gravity, $g = 9.8 m s^{- 2}]$

50 N

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49 N

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100 N

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98 N

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Solution

The correct option is B $49 N$
Given:
Mass of the body, $m = 5 k g$
Acceleration due to gravity, $g = 9.8 m s^{- 2}$ .

From definition of weight,
$W = m g$
$W = 5 \times 9.8 = 49 N$

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If the mass of a body is 5 kg, its weight on the surface of the earth would be ___. [Take acceleration due to gravity, g=9.8 ms−2]

The correct option is B 49 NGiven: Mass of the body, m=5 kg Acceleration due to gravity, g=9.8 ms−2. From definition of weight, W=mg W=5×9.8=49 N

If the mass of a body is $5 k g,$ its weight on the surface of the earth would be ___. [Take acceleration due to gravity, $g = 9.8 m s^{- 2}]$

The correct option is B $49 N$
Given:
Mass of the body, $m = 5 k g$
Acceleration due to gravity, $g = 9.8 m s^{- 2}$ .

From definition of weight,
$W = m g$
$W = 5 \times 9.8 = 49 N$