Measurements from an Atwood's Machine

I made measurements with a simple Atwood's Machine. The mass on the left-hand side fell by d = 98 cm each time.

```

Left-hand mass    Right-hand mass               time
M1 (g)             M2 (g)                    (s)
-----------------------------------------------------------------
207                200              4.06   4.03   3.88

206.5              200.5            4.53   4.59   4.62

206                201              5.00   5.00   5.06

205.5              201.5            6.13   6.16   6.19

205                202              8.00   7.75   7.87

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

```

Your job: use this data to make a table, and then a graph. The table should look like this:

```
M1-M2
Mass difference     Total mass     -----      time        acceleration
M1-M2              M1+M2         M1+M2      (s)            (cm/s^2)
-------------------------------------------------------------------------

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

```

We'll split up the task of computing these values, and then write the values up on the board for everyone to copy.

The graph should show

• acceleration on the vertical axis (cm/s^2)
• mass ratio (M1-M2) / (M1+M2) on the horizontal axis

Determine slope of the straight line on this diagram, and its uncertainty.