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A body having an initial velocity of 10 m/s moves 200 mm in 5 sec when a force of 20 kgf is applied to it. If the acceleration due to gravity is 9 m/s2 the weight of the body should be

[A].	11 kg	[B].	15 kg
[C].	16.5 kg	[D].	18.35 kg
[E].	18.65 kg

Answer: Option B

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