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8. FORCE AND LAWS OF MOTION
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Explain, why is it difficult for a fireman to hold a hose, which ejects large amounts of water at a high velocity.
Option A
Option B
Option C
Option D
Solution
Due to the backward reaction of the water being ejected
When a fireman holds a hose, which is ejecting large amounts of water at a high velocity, then a reaction force is exerted on him by the ejecting water in the backward direction. This is because of Newton's third law of motion. As a result of the backward force, the stability of the fireman decreases.
Hence, it is difficult for him to remain stable while holding the hose.
Standard 9
Science
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