The drum has a mass of 50 kg and a radius of gyration about the pin at O of k_O = 0.23 m. Starting from rest, the suspended 15-kg block B is allowed to fall 3 m without applying the brake ACD. Determine the speed of the block at this instant. If the coefficient of kinetic friction at the brake pad C is μ_k= 0.5, determine the force P that
must be applied at the brake handle which will then stop the
block after it descends another 3 m. Neglect the thickness of
the handle.

Transcribed Image Text:

0.15 m 0.25 m B -P 0.75 m с 0.5 m