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    I got the answer to Q3 wrong; can anyone see why?
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    (Original post by pippabethan)
    I got the answer to Q3 wrong; can anyone see why?
    At B, "h" is 0.5+0.5cos theta, not 0.5 + cos theta.

    Not checked further.
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    (Original post by ghostwalker)
    At B, "h" is 0.5+0.5cos theta, not 0.5 + cos theta.

    Not checked further.

    Thank you! I made this change, and realised at a later point I had also taken the radius to be 1 (oops), so changed that as well. My answer's still different though...
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    (Original post by pippabethan)
    Thank you! I made this change, and realised at a later point I had also taken the radius to be 1 (oops), so changed that as well. My answer's still different though...
    The line: g \cos \theta = \frac{v^2}{0.5} means that v^2 = 0.5g\cos \theta \neq 2g \cos \theta.
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    (Original post by Zacken)
    The line: g \cos \theta = \frac{v^2}{0.5} means that v^2 = 0.5g\cos \theta \neq 2g \cos \theta.
    oops! I'll give it another go
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    (Original post by pippabethan)
    oops! I'll give it another go
    Let me know if it works out!
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    (Original post by Zacken)
    Let me know if it works out!
    Got it! Thank you so much
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    (Original post by pippabethan)
    Got it! Thank you so much
    Legend. :cool:
 
 
 
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