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A 740 gram grinding wheel 26.5 cm in diameter is in the shape of a uniform solid disk. (We can ignore the small hole at the center.) When it is in use, it turns at a constant 250 rpm about an axle perpendicular to its face through its center. When the power switch is turned off, you observe that the wheel stops in 44.0 s with constant angular acceleration due to friction at the axle. Part A What torque does friction exert while this wheel is slowing down? ΑΣΦ T = -0.00386 Submit Previous Answers Request Answer × Incorrect; Try Again Check your signs. ? N⚫m, in the direction opposite to the motion

A 740 gram grinding wheel 26.5 cm in diameter is in the shape of a uniform solid disk. (We can ignore the small hole at the center.) When it is in use, it turns at a constant 250 rpm about an axle perpendicular to its face through its center. When the power switch is turned off, you observe that the wheel stops in 44.0 s with constant angular acceleration due to friction at the axle. Part A What torque does friction exert while this wheel is slowing down? ΑΣΦ T = -0.00386 Submit Previous Answers Request Answer × Incorrect; Try Again Check your signs. ? N⚫m, in the direction opposite to the motion

University Physics Volume 1
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter10: Fixed-axis Rotation
Section: Chapter Questions
Problem 8CQ: A massless tether with a masses tied to both ends rotates about a fixed axis through the center. Can...
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A 740 gram grinding wheel 26.5 cm in diameter is in the shape of a uniform solid disk. (We can ignore the small hole at the center.) When it is in use, it turns at a constant 250 rpm about an axle perpendicular to its face through its center. When the power switch is turned off, you observe that the wheel stops in 44.0 s with constant angular acceleration due to friction at the axle. Part A What torque does friction exert while this wheel is slowing down? ΑΣΦ T = -0.00386 Submit Previous Answers Request Answer × Incorrect; Try Again Check your signs. ? N⚫m, in the direction opposite to the motion
Transcribed Image Text:A 740 gram grinding wheel 26.5 cm in diameter is in the shape of a uniform solid disk. (We can ignore the small hole at the center.) When it is in use, it turns at a constant 250 rpm about an axle perpendicular to its face through its center. When the power switch is turned off, you observe that the wheel stops in 44.0 s with constant angular acceleration due to friction at the axle. Part A What torque does friction exert while this wheel is slowing down? ΑΣΦ T = -0.00386 Submit Previous Answers Request Answer × Incorrect; Try Again Check your signs. ? N⚫m, in the direction opposite to the motion
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