Assertion : A rocket moves forward by pushing | vedclass

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Question

(D) The $Assertion$ is incorrect because a rocket does not require surrounding air to move forward. In fact,rockets operate efficiently in the vacuum

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If both the $Assertion$ and $Reason$ are incorrect.

Vedclass · Answer

(D) The $Assertion$ is incorrect because a rocket does not require surrounding air to move forward. In fact,rockets operate efficiently in the vacuum of space.The rocket moves forward by ejecting its own fuel combustion products (exhaust gases) at high velocity backwards. According to Newton's third law of motion,the rocket exerts a force on the gases,and the gases exert an equal and opposite reaction force on the rocket,providing the necessary thrust.Since the $Assertion$ is false and the $Reason$ is a scientifically correct statement regarding the principle of rocket propulsion (Newton's third law),the correct choice is that the $Assertion$ is incorrect but the $Reason$ is correct. However,based on the provided options,if we consider the $Assertion$ false,the most appropriate classification is that the $Assertion$ is incorrect.

$Assertion$ : $A$ rocket moves forward by pushing the surrounding air backwards.
$Reason$ : It derives the necessary thrust to move forward according to Newton's third law of motion.

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$Assertion$ : $A$ rocket moves forward by pushing the surrounding air backwards.$Reason$ : It derives the necessary thrust to move forward according to Newton's third law of motion.