Question

aspekie

第77題
算式(T2-T1)乘那個R是什麼意思

hicknes      避人有 and a Inmomenmt Of inertia )
Pulley spins On a frictior.
between_ block A and the
t and block 8 descends,

. Use energy methods t6

BJock 4 has ma55 朋4                            of the distance Z that ithas

cajcujate 崗e speed 0f plock 有7a5a
descended

Figure P9.77

Answer 1

shen

力矩

aspekie

那為什麼不是d