To better understand the concept of static equilibrium a laboratory procedure as

Question

To better understand the concept of static equilibrium a laboratory procedure asks the student to make a calculation before performing the experiment. The apparatus consists of a round level table in the center of which is a massless ring held in place with a pin. There are three strings tied to different spots on the ring. Each string passes parallel over the table and is individually strung over a frictionless pulley (there are three pulleys) where a mass is hung. The table is degree marked to indicate the position of each string. There is a mass of m1 = 1.60

Explanation / Answer

F1 = m1*g = 0.157kg*9.81m/s^2 = 1.54N @ 26.2 deg = 1.382i + 0.680k F2 = m2*g = 0.215kg*9.81m/s^2 = 2.11N @ 278 deg = 0.294i - 2.089k F1 + F2 = 1.676i - 1.409k = 2.190N @ -40 deg (320 deg) so required F3 is 2.190N @ -40 +180 deg = 140 deg m3 = 2.19N / 9.81 = 223g at angle 140 deg

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.