Two blocks of mass m 1 = 44 kg and m 2 = 15 kg are connected by a massless strin

Question

Two blocks of mass m1 = 44 kg and m2 = 15 kg are connected by a massless string that passes over a pulley as shown in the figure below. The coefficient of static friction between m1 and the table is ?S = 0.43.

(a) Will this system be in static equilibrium? Assume the pulley is frictionless.
---Select--- Yes No

(b) Find the tension in the string.
______ N

Which of the graphs in the figures below might be a plot of the vertical component of the velocity of a projectile that is thrown from the top of a building?  

Which of the graphs in the figures below might be a plot of the vertical component of the velocity of a projectile that is thrown from the top of a building? Two blocks of mass m1 = 44 kg and m2 = 15 kg are connected by a massless string that passes over a pulley as shown in the figure below. The coefficient of static friction between m1 and the table is ?S = 0.43. (a) Will this system be in static equilibrium? Assume the pulley is frictionless. ---Select--- Yes No (b) Find the tension in the string. ______ N

Explanation / Answer

yes

total accleration of the system is T -Ff = ma

so

T - (0.43* 44) = 12* a

T    = 18.92 + 12 a -------------------1

use F = ma

W2-T = ma

12 * 9.8 - T = 12 a --------------2

adding 1 and 2

24a = 117.6+18.92

a = 5.68 m/s^2

--------------------------------

T = mg

T = 12 * 9.8

T = 117.6 N

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

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