Question

Section 19.1-19.3 HW Problem 19.15 2 of 4 A6 kg disk Als mounted on arm BC which has a negligtale mass Atorgue of M - (5) Nm where t is in seconds is applied to the armat Suppose that 1 = 280 mm (Figure 1) Part A Determine the magnitude of the angular velocity of Bin 2 starting from rest Solve the problem assuming that the disk is set in a smooth bearing at B so that it rotates with curvilinear relation Express your answer using three significant figures 10 AED utvec 7 Subm Heures Part Determine the magnitude of the angular Velochy of BC in 2 starting from solve the problem assuming that the disk is food to the shaft Express your answer using three significant figures. Figure Toft ΑΣ It VOC ? Submit Reuest AS Part 60 M-5). Determine the magnitude of the angel velocity of BC in 2 starting from rest Solve the problem suming that the disk is given an initial freely spinning angular velocity ofw = [-80k} rad/s prior to application of the torque Express your answer using three significant figures. 11 MOC O Type here to search

Answer 1

ist nor dt = 6X WBCX 0, 280² - 0.4704 WBC + 0.5X 6x 0.06 WBC m= 6kg l=280mm M= = 5e It mat = m WBC 5 st eorst 58² cost dt = 6x0,280% WBC 10 [ 0 SX2 ] = 0.4704 Wor 10[2.7183-1) = 0.4704 War WBC = 36.53 rad rad/s ®) emputre -momentum principle +0.5t MAWBC l² + 1 mrtwee 2 so e tost at = 2 17.10 - 0.4612 WBL WBC = 35.70 rad/s t₂ © similuly & Max+ 2 & Medt = (Hede (He), 2 so mat 082 • Wp am Woch I mewn sotois post at = muused WBC = 36.53 rad see