A two-dimensional duct contains a straight sided contraction as in Fig XXXXXXXXXXThe depth is constant at 30 cm. At a certain time an incompressible fluid flows in the duct at a rate of 0.3 m 3 /s and...

A two-dimensional duct contains a straight sided contraction as in Fig. 3.29. The depth is constant at 30 cm. At a certain time an incompressible fluid flows in the duct at a rate of 0.3 m³
/s and is decreasing at the rate of 0.1 m³
/s per second. Esti mate the acceleration at the section AA 20 cm from the inlet.