EE 2120 Final: Take Home Problem Ch 8
Document Summary
Due on friday, march 21, by 3pm in nicholson 202. Two blocks are attached to one another, as shown, by means of a massless cord that passes over a massless frictionless pulley. Block 1 (mass (cid:1)(cid:2) (cid:3) (cid:4)(cid:5)(cid:6)(cid:5)(cid:7)(cid:8)(cid:9)) is connected to a spring with spring constant (cid:10) (cid:3) (cid:4)(cid:5)(cid:5)(cid:7)(cid:11)(cid:12)(cid:13), and block 2 (mass (cid:1)(cid:14) (cid:3) (cid:15)(cid:5)(cid:6)(cid:5)(cid:7)(cid:8)(cid:9)) sits on a frictionless ramp that makes an angle (cid:16) (cid:3) (cid:17)(cid:5)(cid:6)(cid:5)(cid:18) with the horizontal. The coefficient of kinetic friction between block 1 and the horizontal surface is (cid:19)(cid:20) (cid:3) (cid:5)(cid:6)(cid:4)(cid:5). Set gravitational potential energy of the blocks-earth-spring-ramp system to be zero when the spring is relaxed. Plot (cid:23)(cid:24)(cid:25)(cid:26) on the graph paper provided, clearly labelling all important values of (cid:25) and (cid:23)(cid:24)(cid:25)(cid:26). Plot (cid:23)(cid:24)(cid:25)(cid:26) using a regular pencil or black ink, or use a dark solid line. (b) when released, the blocks move rightward and down the ramp, momentarily coming to rest before block 1 can hit the pulley.
