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if air of weight W is filled in a empty ballon of weight W1, the weight of ballon will become W2. suppose the density of air inside and outside the ballon is same , then ​A. w2=w1+w B w1 = w2-w C w2 = w1 D W2=W1 -W

if air of weight W is filled in a empty ballon of weight W1, the weight of ballon will become W2. suppose the density of air inside and outside the ballon is same , then 
​A. w2=w1+w 
B w1 = w2-w
C w2 = w1
D W2=W1 -W

Grade:12

1 Answers

Arun
25763 Points
3 years ago
W2=W1. Since densities of air inside and outside ballon are identical, weight w of added air inside ballon is equal to weight w of displaced air. Spring balance will not register any difference as ballon will experience uplift force equal to w that exactly cancells weight of added air. Volume of baloon is assumed unchanged, therefore volume of air displaced by baloon itself is unchanged.

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