A 30kg girl and a

  1. A boy and a girl on aplay ground see saw .The see saw has a mass of 30kg and is pivoted at it's center.Their mother has to hold
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    2. James asked by James
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  2. a 40kg girl and a 30kg boy face each other on friction free roller skates. the boy pushes the girl,
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    2. Leah asked by Leah
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  3. a boy of mass 40kg and a girl of 30kg play on a see saw of negligible weight.if the boy sits 270cm from the pivot of the see-saw
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    2. randy asked by randy
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  4. A boy of mass 40kg and a girl of mass 30kg play on seesaw of negligible weight if the boy sits 3m from the pivot where must the
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    2. Anonymous asked by Anonymous
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  5. A 30kg girl and a 25 kg boy face each other on friction free roller blades the pushes the boy who moves away at a speed of
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    2. Reno asked by Reno
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  6. A boy has a mass 40kg and a girl of mass 30kg play on a see-saw, where must the girl sit to make it balance?
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    2. atiyya asked by atiyya
    3. views icon 739 views
  7. What is the weight on earth of a girl with a mass of 30kg?
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    2. danny asked by danny
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  8. A 1.30kg kg box and a 3.80kg kg box on a perfectly smooth horizontal floor have a spring of force constant 300N/m N/m compressed
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    2. joana asked by joana
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  9. A 10 meter long seesaw has a boy of mass 20 kg sitting on one end . How far away from him should a girl of mass 30kg sit to
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    2. Zahra ferdous asked by Zahra ferdous
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  10. A little girl of mass 30kg is jumping straight up and down on a stretched trampoline. During a single jump, she reaches a
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    2. amy asked by amy
    3. views icon 1,309 views