In the apparatus below a 50 g mass is hung from the pulley and released. A disk

Question

In the apparatus below a 50 g mass is hung from the pulley and released. A disk is paced on the platform. The platform has a radius of 5 0 cm. The disk and platform go from rest to an angular velocity of 8 5 rad/s in 2.5 seconds Calculate the moment of inertia of the Ask? What is its mass? Ignore the mass of the platform. Feel free to look up the moment of inertia of a disk. Show your work and/or explain your reasoning. How would the final angular velocity change if instead of a disk, the experiment was done using a ring with the same mass and radius as the disk? Show your work and/or explain your reasoning

Explanation / Answer

Net torque = mgR = 0.0245 Nm

angular acceleration = 8.5/2.5 = 3.4 rad/s2

I=T/a=7.20 x 103 Kgm 2

=0.5MR2

solving for M,

M = 5.76 Kg

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.