Q. When a person walks on a boat, the center of mass of the system

जब कोई व्यक्ति नाव पर चलता है, तो वह निकाय के द्रव्यमान का केंद्र होता है

A
Remains fixed
स्थिर रहता है
B
Moves with person
व्यक्ति के साथ चलता है
C
Moves opposite to person
व्यक्ति के विपरीत चलता है
D
Moves forward
आगे बढ़ता है

Explanation

If no external horizontal force acts (frictionless water), then the center of mass of the person + boat system remains stationary. The boat moves in the opposite direction to conserve the total momentum, keeping the CM position unchanged.

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