Figure below shows a plate of negligible weight moving upwards under the action of a force F. The gaps between the platesx1-5cm and x2=12cm are filled with the same fluid.

Assume the velocity of the fluid varies linearly between the plates.Match the following pairs. v Is the shear stress on each side of the middle plate the same? On which side of the middle plate shear stress is greater? On which side of the middle plate shear force is smaller? - What do you have to change to ensure that the shear stress on both sides of the middle plate is the same? Does the shear stress change within the gap between the middle and the left fixed plates?

Fig: 1

Fig: 2

Fig: 3

Fig: 4

Fig: 5

Fig: 6

Fig: 7