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A bird of mass 0.1 kg rising vertically with an acceleration 0.2 ms^(-2). The muscular force exerted by it is (g=9.8 ms^(-2))(a) 1 Newton(b) 9.8 kg. wt(c ) 1//9.8 kg. wt(d) 980 newtons. |
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Answer» a is CORRECT |
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