Question

please show steps clearly

please also use both forms of newtons 2nd Law

to relate both forms of newtons 2nd Law using a=R(alpha) both a and alpha must be expressed in a way that makes their magnitudes positive

-use kinematics for part c

-include an energy diagram when confirming with the energy approach and assume there is no work done by external forces for the disk-string-earth system in part d

rotatioll Is LCIU. DU solving a transcendental equation numerically. 41. Review. A string is wound around a S uniform disk of radius R and mass M. The disk is released from rest with the string vertical and its top end tied to a fixed bar (Fig. P10.41). Show that (a) the tension in the string is one third of the weight of the disk, (b) the magnitude of the acceleration of the center of mass is 2g/3, and (c) the figure P10.41 speed of the center of mass is (4gh/3)/2 after the disk has descended through distance h. (d) Verify your answer to part (c) using the energy approach. 42. Review. A spool S under A spool of wire of mass M and radius R is unwound 1. Anolis

Answer 1

By Applying Necoton's 2nd lauw EFy may Mg-T Ma aMg-T becomes ST-Td then -TR a=2T Mg 2T Mg-T 2T 7- T Mg 2 Mg 3M a 3 Since V O, qnd a 2 02(29h (43h From Conser vafim erengy migh-소z0 + 늦ov mgh mr44wv + VC