Newton’s Second Law corrected the old belief that force is needed to maintain motion. This idea came from the philosopher ______.
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प्रश्न
An aeroplane is moving uniformly at a constant height under the action of two forces (i) Upward force (lift) and (ii) Downward force (weight). What is the net force on the aeroplane?
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उत्तर
The net force on the airplane is zero or the upward force is equal to the downward force.
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