Answer
$14\frac{m}{s^2}$
Work Step by Step
As we know that
$\Sigma F_y=T_2-Mg=Ma$
This can be rearranged as:
$a=\frac{T_2}{M}-g$
We plug in the known values to obtain:
$a=\frac{16}{0.67}-9.81=14\frac{m}{s^2}$
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