the masses of two bodies are measured to be 15.7 +- 0.2 kg and 27.3 +- 0.3 kg what is the total mass of the body and the error in it?
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Explanation:
m1 = 15.7+-0.2
m2 = 27.3+-0.3
Total mass = 15.7+-0.2+27.3+-0.3
= 33 +- 0.2+-0.3
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