- #1

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**Tension problem!!**

## Homework Statement

Consider a force F = 887 N pulling 3 blocks

of masses m1 = 9 kg, m2 = 16.9 kg, and

m3 = 26.1 kg along a frictionless horizontal

surface.

The tension of the strings are T1 and T2 (see

sketch).

The equation of motion of m2 is given by

1. T1 − T2 = m1 a .

2. T1 − T2 = m2 a .

3. T1 = m2 a .

4. T1 − T2 = (m1 +m3) a .

5. T1 + T2 = m1 a .

6. T1 = (m1 + m3) a .

7. T1 + T2 = m2 a .

8. T1 = m1 a .

9. T1 + T2 = (m1 +m3) a .

## Homework Equations

F=ma

## The Attempt at a Solution

T1 = m2a

T2 = m3a

When I try to solve through substitution, I don't get any of the choices above.

What do i do next?