3
Question
The rockets work on the principle of conservation of :
(a) mass
(b) energy
(c) momentum
(d) velocity
(a) mass
(b) energy
(c) momentum
(d) velocity
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Solution
(c) momentum
The chemicals inside the rocket burn and produce a high-velocity blast of hot gases which move out through the tail nozzle of the rocket. As these gases move in downward direction with tremendous speed, the rocket moves up to balance the momentum of gases.
The chemicals inside the rocket burn and produce a high-velocity blast of hot gases which move out through the tail nozzle of the rocket. As these gases move in downward direction with tremendous speed, the rocket moves up to balance the momentum of gases.
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