Objects with masses m 1 = 12.0 kg and m 2 = 6.0 kg are connected by a light stri

Question

Objects with masses m1 = 12.0 kg and m2 = 6.0 kg are connected by a light string that passes over a frictionless pulley as in the figure below. If, when the system starts from rest, m2 falls 1.00 m in 1.80 s, determine the coefficient of kinetic friction between m1 and the table.

Objects with masses m1 = 12.0 kg and m2 = 6.0 kg are connected by a light string that passes over a frictionless pulley as in the figure below. If, when the system starts from rest, m2 falls 1.00 m in 1.80 s, determine the coefficient of kinetic friction between m1 and the table.

Explanation / Answer

x = 1/2 a t^2

1 = 0.5*a*1.8^2

a=0.617 m/s^2

sum forces

m2g - friction = (m1 + m2) a

friction = u m1 g

6*9.81 - u*12*9.81 = (6 + 12)*0.617

u=0.406

Related Questions

Navigate

• Browse (All)
• Browse O
• Subjects

---

---

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