Recent content by sinisterstuf

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    Can Bicycle Pedal Forces Be Modeled by a Sine Function?

    Good point. I'm not sure but i think there is a peak point in the force from the pedal stroke ...but I may be wrong. If you can explain your reasoning to me in a way that I can understand then your theory can replace mine :)
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    Can Bicycle Pedal Forces Be Modeled by a Sine Function?

    Thanks for the suggestion. Riders using platform pedals, not clipless or toe clips. Out of interest, what curve would you get for a rider wearing toe clips / clipless shoes?
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    Probability problem involving binomial expnasions

    Hahaha, oh my goodness that's embarrasing, I feel a bit... dumb. But I was so tired, it's my excuse. :P Thanks for your help! I'll keep your advice in mind ;) thanks -sinisterstuf
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    Probability problem involving binomial expnasions

    Wow thanks. And thanks for the welcome :) and HallsofIvy is right. It's to get the answer in simplest form. Ok, so you get the correct answer but there's a part i don't understand. How do you get the 32/81?! I understand that 4(8/27) = 32/81, right? But where does the 1/3 go then? The one...
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    Probability problem involving binomial expnasions

    Homework Statement a) Expand ([2/3]+[1/3])^4 b) Four chocolates are randomly taken (with replacement) from a box containing strawberry creams and almond centres in the ratio 2 : 1. What is the probability of getting: i) all strawberry creams ii) two of each type iii) at least 2...
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    Can Bicycle Pedal Forces Be Modeled by a Sine Function?

    ok that makes sense, thanks. oh, right I guess I forgot to mention that its a simple system. so lots of stuff is ignored because you can actualy control them. so differences in friction from the road, wind resistance, using different gears, difference in the incline og the hill, cadence of...
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    Can Bicycle Pedal Forces Be Modeled by a Sine Function?

    Hi, I'm new to the forum so I hope this is the right place to post this, I actually joined to ask this question. I found something in the archive through a google search. The thread can be found at: https://www.physicsforums.com/archive/index.php/t-117265.html Some of the things in there were...
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