Homework Help: Physics helppp

Posted by Sam on Wednesday, July 14, 2010 at 12:02pm.

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 = 30.0 kg, mB = 40.0 kg, mC = 28.0 kg.

The image is a horizontal pulley, with mass mA on the left, and B and C on the right side, underneath the pulley and connected by a rope.

(a) When the assembly is released from rest, what is the tension in the cord that connects boxes B and C?
1 N

(b) How far does box A move in the first 0.250 s (assuming it does not reach the pulley)?
2 m

Physics helppp - some one, Friday, October 19, 2012 at 4:14am
help please

Answer this Question

Related Questions

phyics help nedded - In the figure below, three ballot boxes are connected by ...
physics - Three boxes are connected by cords, one of which (mA) wraps over a ...
Physics helppp - The figure below shows an arrangement in which four disks are ...
physics - The figure below shows two objects with masses m and M which are ...
Physics - A massless rope passes over a massless, frictionless pulley. One end ...
Physics - The diagram for this problem is a pulley. On the left end Box 1 is ...
Physics - The two blocks in the figure below, m1 = 1.2 kg and m2 = 4.8, are ...
physics - Three blocks are located on a horizontal table. The coefficient of ...
physics - The drawing shows box 1 resting on a table, with box 2 resting on top ...
Physics - The two blocks in the figure are connected by a massless rope that ...

For Further Reading

First Name:
School Subject:
Answer: