A uniform disk of radius R and mass 5 kg is pivoted such that it rotates...

 

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A uniform disk of radius R and mass 5 kg is pivoted such that it rotates freely about its central axis as shown in the diagram. A string wrapped around the disk is pulled with a force of 20 N. The disk accelerates rad at 25. The moment of inertia for a disk is laisk = 5 kg b. Find the radius of the disk. Axis of rotation goes into/out of page a. If the disk starts from rest, determine its angular displacement after 3 seconds (include the algebraic sign of the displacement + or -). 20 N c. At t = 3s the string comes off the cylinder and a braking force of 10 N is then applied at the outside edge of the disk. How long will it take for the wheel to stop after the brakes are applied? A uniform disk of radius R and mass 5 kg is pivoted such that it rotates freely about its central axis as shown in the diagram. A string wrapped around the disk is pulled with a force of 20 N. The disk accelerates rad at 25. The moment of inertia for a disk is laisk = 5 kg b. Find the radius of the disk. Axis of rotation goes into/out of page a. If the disk starts from rest, determine its angular displacement after 3 seconds (include the algebraic sign of the displacement + or -). 20 N c. At t = 3s the string comes off the cylinder and a braking force of 10 N is then applied at the outside edge of the disk. How long will it take for the wheel to stop after the brakes are applied?

Answer rating: 100% (QA)

a Wf Wo at Wf 0253 75 w W 200 w 0 200 W 75 2 2... View the full answer