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on a horizontal frictionless frozen lake a girl 36 kg and a box 9kg are connected to each other by a rope.initially they are 20m apart.the girl exerts a horizontal force on the box..how far has the girl travelled when she meets the box

on a horizontal frictionless frozen lake a girl 36 kg and a box 9kg are connected to each other by a rope.initially they are 20m apart.the girl exerts a horizontal force on the box..how far has the girl travelled when she meets the box

Grade:11

1 Answers

Chelsi Kothari
38 Points
3 years ago
As no external force acts on the body, the following concept of mass is valid
Mass of girl*distance moved=mass of block* total distance moved
Let the distance moved be x, after which the block and girl meet, so
36x=9(20-x)
36x+9x=180
Thus, x= 4m

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