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Subjects
Science CBSE
Class 9
Work and energy
Textbook based HOTS II
5.
Multiple choice question V
Exercise condition:
2
m.
A body of mass
20\ kg
falls through a distance of
50\ cm
. Then the loss in potential energy is [Take
g\ =\ 9.8\ ms^{-2}
]
98\ J
490\ J
980\ J
9800\ J
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