1. The velocities in a circular duct of 20-in. diameter were measured as follows: Find (a) the average velocity; (b) the flow rate in cubic feet per second. 2. In the piston and cylinder arrangement...

1. The velocities in a circular duct of 20-in. diameter were measured as follows:

Find (a) the average velocity; (b) the flow rate in cubic feet per second.

2. In the piston and cylinder arrangement shown below, the large piston has a velocity of 2 fps and an acceleration of 5 fps². Determine the velocity and acceleration of the smaller piston.