Question

1. Two 20kg pods are attached to the ends of a 4m massless bar. A motor applies an increasing moment approximated by M = 6001 (Nm) to a connecting shaft which causes the pods to rotate. Determine how fast the pods are traveling after 4 seconds if the friction in the motor's bearings is approximately 80Nm, respectively. Ignore wind resistance and the mass of the rotating shaft.

Answer 1

niven drm dan mtoy o 6004( lm) I (maxe momentet of inentia about (sex anix) mre & mara? - 20x28 120x92 - 80 + 80 I 160 Kg-w ? we known - IL (600x4 - 80 - 1600 A pesisuing force supplying forge. on solving we get 2 = 14.5 rada Now wh o tht (since start from ress ing- 14.1 x 4 = 58 rad/s yote vya 58 rad 100 mg it any doubt please comment. Thank yoy.