**EXAMPLE 1: ****Euler's laws for 2-D motion**

** **

The cart *C*
is moving with a constant acceleration _{} as shown. Calculate
the reactions at pins *A* and *B* on the uniform rectangular plate of
mass m.

**Solution:**

_{}

_{}

_{}

_{}

_{}

Solve
(1), (2), and (3) to get

_{}

_{}

_{}