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A man of 60 kg is running on the road and suddenly jumps into a stationary trolly car of mass 120 kg. Then. the trolly car starts moving with velocity 2 ms–1 . The velocity of the running man was ______ ms–1 . when he jumps into the car. |
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Answer» Correct answer is 6 m/s Taking the system as man and trolley and using conservation of linear momentum. 60 x v = (60 + 120) × 2 ⇒ v = 6 m/s |
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