In the figure below, three ballot boxes are connected by cords, one of which wra

Question

In the figure below, three ballot boxes are connected by cords, one of which wraps over a pulley having negligible friction on its axle and negligible mass. The masses are mA =36.0 kg, mB = 40.0 kg, mC = 24.0 kg.

In the figure below, three ballot boxes are connected by cords, one of which wraps over a pulley having negligible friction on its axle and negligible mass. The masses are mA =36.0 kg, mB = 40.0 kg, mC = 24.0 kg. When the assembly is released from rest, what is the tension in the cord that connects boxes B and C? How far does box A move in the first 0.250 s (assuming it does not reach the pulley)?

Explanation / Answer

(a)
Tension between AC is T1 and BC is T2 .

24(9.80) - T2 = 24a

T2 + 40(9.8) - T1 = 40a

T1 = 24a

T2 + 392 - 24a = 40a
T2 + 392 = 64a
T2 = 64a - 392

235.2 - (64a - 392) = 24a
627.2 = 88a
a = 7.127272727272 m/s

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---