1.

Select the correct reason for the uplift of a jet plane A jet plane moves up in air because

Answer»

the gravity does not ACT on bodies moving with HIGH speeds
the thrust of the jet COMPENSATES for the force of gravity
the flow of air around the wings causesan UPWARD force4 whcihc compensates for the force of gravity
the weightof air whose volume is equal to the volume of the plane is more than the weight of the plane

ANSWER :b


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