On a horizontal frictionless frozen lake, a girl $(36 k g)$ and a box $(9 k g)$ are connected to each other by means of a rope. Initially they are $20 m$ apart. The girl exerts a horizontal force on the box, pulling it towards her. How far has the girl traveled when she meets the box?

10 m

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Since there is no friction, the girl will not move

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16 m

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4 m

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Solution

The correct option is D $4 m$
Since there is no frictional force, the coordination of CM will be conserve.
$36 \times Y = 9 (20 - Y)$
$Y = 4 m$

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On a horizontal frictionless frozen lake, a girl (36kg) and a box (9kg) are connected to each other by means of a rope. Initially they are 20m apart. The girl exerts a horizontal force on the box, pulling it towards her. How far has the girl traveled when she meets the box?

The correct option is D 4mSince there is no frictional force, the coordination of CM will be conserve.36×Y=9(20−Y)Y=4m

On a horizontal frictionless frozen lake, a girl $(36 k g)$ and a box $(9 k g)$ are connected to each other by means of a rope. Initially they are $20 m$ apart. The girl exerts a horizontal force on the box, pulling it towards her. How far has the girl traveled when she meets the box?

The correct option is D $4 m$
Since there is no frictional force, the coordination of CM will be conserve.
$36 \times Y = 9 (20 - Y)$
$Y = 4 m$