Questions
A wagon of 200 kg is moving on a smooth track with velocity of 2 m/sec. A man of 80 kg also runs in the wagon with a velocity such that speed of the centre of mass of the system is zero. Find the velocity of man relative to the wagon (in m/s).
detailed solution
Correct option is C
Velocity of centre of massvcom = mwagon×vwagon+mman×vman(mwagon×mman)vcom = (200)(2)+(80)(V)280 = 0 ⇒V = -5 m/svman → = v→ man, wagon + vwagon→v→man, wagon = v →man-v→wagon = -5-2 = -7 m/sTalk to our academic expert!
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