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-wC w2 = w1D 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