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Subjects
Science CBSE
Class 9
Work and energy
Textbook based HOTS II
23.
Multiple choice question XXIII
Exercise condition:
2
m.
A body of mass
10\ kg
is dropped to the ground from a height of
10\ metres
. The work done by the gravitational force is (
g\ =\ 9.8\ ms^{-2}
)
-490\ J
+490\ J
-980\ J
+980\ J
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