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    Okay can someone explain how you are supposed to do these questions because i'm not getting anything close to the answers. What am I doing wrong?
    How tf are these only 1 mark 😡😡


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    (Original post by jessyjellytot14)
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    Okay can someone explain how you are supposed to do these questions because i'm not getting anything close to the answers. What am I doing wrong?
    How tf are these only 1 mark 😡😡


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    For Q9, you need

     v = \omega r = 2 \pi f r

    For Q10, you need

     v = \frac{2 \pi r}{T}
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    (Original post by Eimmanuel)
    For Q9, you need

     v = \omega r = 2 \pi f r

    For Q10, you need

     v = \frac{2 \pi r}{T}
    Okay so for Q9, you substitute the v in 1/2mv2 for 2πfr ? And then then solve?
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    (Original post by jessyjellytot14)
    Okay so for Q9, you substitute the v in 1/2mv2 for 2πfr ? And then then solve?
    Yes.
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    (Original post by Eimmanuel)
    Yes.
    It won't let me rep you but thank you
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    (Original post by jessyjellytot14)
    It won't let me rep you but thank you
    I am glad that you can derive the answer.
 
 
 
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