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Work Done by Force of Gravity

The work done...

Question

The work done in lifting a suitcase of mass 10 kg at a height of 2m from the ground is

A

19.6 j

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B

196 j

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C

1960 j

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D

zero

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Solution

The correct option is B 196 j
Given,
$m = 10 k g$
$h = 2 m$
$g = 9.8 m / s^{2}$
Work done, $W = m g h$
$W = 10 \times 9.8 \times 2 = 196 J$
The correct option is B.

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