PHYS 218 Midterm: Texas A&M Physics 218 Exam3_2010_solutions
Document Summary
Do not fill out the information below until instructed to do so! All work must be shown to get credit for the answer marked. Put your initials here after reading the above instructions:__________ Table to be filled by the graders. The catcher system is moving to the right with speed v1=2m/s, at an angle =30 but without rotating. A numerical answer with proper units is expected for each question. Question 1. 1. 3: (10p) eventually the cup catches the mass m2 and they stick together. Find the angular its center of mass. (hint: you may use the catcher+m2 system around velocity of. Cm with icm= 6. 4 kg m2) There are not external forces, so the torques of the external forces is zero and therefore the angular momentum is conserved. L i = r 1 m1 r cm . Cm = 2 kg m 2 / s z + icm. 8kgm 2 / s z = icm.
