a body has weight 20N. how much force is required to move vertically upward with an acceleration 0.2ms-₂
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The mass of the body is obtained by dividing the weight by acceleration due to gravity 'g' approximately taken as 10 m/sec/sec. Mass = 20 /10 ≈ 2 kg. The upward force must offset the weight acting downwards and additionally provide a force = 2 *2 = 4 N.
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