(adsbygoogle = window.adsbygoogle || []).push({}); 1. Calculate the air resistance co-efficient of the ballon

I trying to do my best because I have this equations in my notes Fd = k . v^2 and its says the force of air resistance is proportional to the square of the velocity of the object.

So I only now v^2 I think is my terminal velocity that is 2.9584 , but I dont know K because is the air resistance coefficient, and I dont know the force drag ( Fd)

NOW I have this other equation For an object with mass m and air resistance coefficient k the terminal velocity is given by:

Vt = √(m.g/k)

and this I know Vt is 2.9584 , m is 2.3192g , and g is 9.8 but the only thing I dont know is K because is the air coefficient , and I can rearrange the equation like k = √(m.g/vT) ... but I not sure please help me out guys.

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# Air resistance co-efficient

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