A jet airplane travelling at the speed of 500 km h -1 ejects its products of combustion at the speed of 1500 km h -1 relative to the jet plane. The speed of the products of combustion with respect to an observer on the ground is
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Verified by ExpertsThe correct answer is:
B
Velocity of jet plane w.r.t. ground 
Velocity of products of combustions w.r.t. jet plane 
Velocity of products of combustions w.r.t. ground is 
- ve sing shows that the direction of products of combustion is opposite to that of the plane.
Speed of the products of combustions w.r.t. ground = 
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