Two packing crates of masses $m_1=10\mathrm{.}0kg$ and $m_2=6\mathrm{.}60kg$ are connected by a light string that passes over a frictionless pulley as in the figure below. The

$6\mathrm{.}60-kg$ crate lies on a smooth incline of angle $33\mathrm{.}0.$ Find the following.

$($a$)$ the acceleration of the $6\mathrm{.}60-kg$ crate

$\frac{m}{s^2}($up the incline$)$

$($b$)$ the tension in the string

N