1.

A jet plane flies in the air because  [NCERT 1971]

A. The gravity does not act on bodies moving with high speeds  
B. The thrust of the jet compensates for the force of gravity  
C. \[3.8\times {{10}^{12}}kg\]   
D. The weight of air whose volume is equal to the volume of the plane is more than the weight of the plane
Answer» C. \[3.8\times {{10}^{12}}kg\]   


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