Ok, in my Physics 11 H class we did a lab with an inertial disk (a disk with a hub in the center, a string is attached to the hub like a huge half a yoyo where the yoyo is stationary and weights are the fingers falling down) and i need to be able to calculate the tension in the string for various weights attatched to the end of the strings. im pretty sure that just using T=ma will work or maybve do something with tension but i dont know where the radius of the hub comes into play and the weight of the disk, any help would be greatly appreciated the diamter of the hub is 76 cm and the disk is 25 cm i calculated the acceleration of a 69.9 gram weight to be .039 m/s^2 and it falls 1.75 meters in a 6.69 second period so using my logic t= .669 * .039 is that correct?(adsbygoogle = window.adsbygoogle || []).push({});

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# Homework Help: Inertial disk lab

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