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pnicole

  • 3 years ago

Could some please help me? I don't understand how to answer this worksheet.

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  1. pnicole
    • 3 years ago
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    ugh, i'm sorry! The file won't upload!

  2. pnicole
    • 3 years ago
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    |dw:1316959273911:dw|

  3. pnicole
    • 3 years ago
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    I need to find momentum before, velocity after and momentum after.

  4. pnicole
    • 3 years ago
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    Granny whizzes around the rink and is suddenly confronted with a girl at rest directly in her path. Rathe than kocking her over, she picks her up and continues in motion without "braking" Data: Granny's mass: 50kg Granny's Vi: 3 m/s Girl's mass: 25 kg Girl's Vi: 0 m/s What is their momentum before and after?

  5. UnkleRhaukus
    • 3 years ago
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    Apply conservation of momentum Scenario 1 momentum before is mv = 50kgx3m/s +25kgx0m/s = 150kg.m/s -> momentum after is mv = 50kgx0m/s + 25kgxAm/s solving, A = (150kg.m/s) / (25kg) = 6 m/s

  6. UnkleRhaukus
    • 3 years ago
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    Granny's Vi, 2 or 3, i was looking at the picture

  7. pnicole
    • 3 years ago
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    Oh, I'm sorry. I forgot to say that the mass of the ones in the picture are 200 kg.

  8. pnicole
    • 3 years ago
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    It's different from Granny

  9. UnkleRhaukus
    • 3 years ago
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    well im glad nobody's granny weighs that much on ice skates also, why three sets of data?

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