Question

6. (20) Energy conservation analysis: Use conse frictional force, to directy find the kinetic energy of the sysin ysis: Use the conservation of energy, coupled with the work done by the when m2 hits the ground. With that ds a symbolic relation involving u, m, m2, g, and h. b) Compare your resu to Prob 5. a) v b) The next figure is used for both problems 5 &6. It shows two masses mi and m, connected by a string with tension 7 which runs over a massless ideal pulley. The first mass rests on a rough surface with coefficient of kinetic friction pt. The second mass hangs from the string at a height h above the ground. The system begins with my held at rest at h. Then m is released and falls vertically to the ground, simultaneously dragging my to the right. For this system, you are asked to find the speed at which m hits the ground, but using two different methods as described in Prob 5 and Prob 6. Numerical values for these problems are: m 5 kg, m3 kg. μ.-03, h 1.5m.

Answer 1

5) Ae a ne 3 X 5x3-8 了刈具 2 L V-2.35

bavi 5 3 V 2- V35