313_Physics ProblemsTechnical Physics

313_Physics ProblemsTechnical Physics - Chapter 10 P10.77 F...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 10 315 P10.77 F T Mg Ma TR I MR a R ∑∑ =− = = = = F H G I K J : τα 1 2 2 (a) Combining the above two equations we find TM ga =− bg and a T M = 2 thus T Mg = 3 (b) a T MM Mg g == F H G I K J = 22 3 2 3 FIG. P10.77 (c) vv a xx fi 2 =+ di vg h f 2 02 2 3 0 F H G I K J af v gh f = 4 3 For comparison, from conservation of energy for the system of the disk and the Earth we have UK K K gi i i gf f f ++ = + + rot trans rot trans : Mgh MR v R Mv f f ++=+ F H G I K J F H G I K J + 000 1 2 1 2 1 2 2 2 2 v gh f = 4 3 P10.78 (a) FF
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.
Ask a homework question - tutors are online