Posted by **Josh** on Saturday, November 21, 2009 at 7:30pm.

How can I calculate the tension in the two cords that are labeled A and B in a two mass system? Cord A is on top with a 1 kg mass attached and Cord B connects this mass to a 2 kg mass. The two mass system accelerates directly upward at 2m/s^2.

- physics -
**MathMate**, Saturday, November 21, 2009 at 11:09pm
The diagram looks like this:

UP ----> T1 <----1Kg---> T2 <----2Kg DOWN

The whole system is accelerating upwards at 2 m/s².

Start with the 2kg mass (m2).

The acceleration is due to T2 in excess of the weight due to the 2kg block, or T2-m2.g newtons.

Thus applying F=ma

(T2-m2g)=m2(a)

where a is the acceleration of 2 m/s²

Solve for T2

Now similarly consider the m1=1 kg mass.

Net force causing acceleration

=T1-m1g-T2.

Thus, again

T1-m1g-T2 = m1(a)

Solve for T1.

## Answer This Question

## Related Questions

- physics 1403 - 10kg mass is attached to a 5kg mass by a 20cm cord. The 5 kg ...
- Physics - A stationary arrangement of two crayon boxes and three cords. Box A ...
- physics - A mass of 1.1 kg is attached to two cords. The cords are each an angle...
- physics - An object weighting 300 N is suspended by means of two cords. (There ...
- physics - Shows three boxes connected by cords, one of which wraps over a pulley...
- Physics - A 9.00 kg mass is connected by a light cord to a 1.00 kg mass on a ...
- physics - A 15.0 kg mass and a 10.0 kg mass are suspended by a pulley that has a...
- physics - A mass of 0.04 kg is attached to a cord passing through a small hole ...
- physics HELPP!!!!!!! - A 6.00 kg mass is connected by a light cord to a 1.00 kg ...
- physics - Two boxes are connected by a weightless cord running over a very light...

More Related Questions