Answer :
The velocity at the center of the pipe is 13.33 m/s. The further detail can be seen below.
The velocity of an object is the level of change of its position with respect to a frames of reference and is a function of time. The SI of velocity is meter per second or m/s. Velocity is kind of vector quantities.
To determine the velocity at the center of the pipe we can use this formula:
u(r) = 2 x Uavg
The average speed at r = 1/2. R is
Uavg = 10/( 2 x (1 - 1/4)
Uavg = 10/( 2 x 3/4)
Uavg = 10/ (3/2)
Uavg = 10/1.5
Uavg = 6.67
So, the velocity at the center of the pipe is:
Umax = 2 x Uavg
Umax = 2 x 6.67
Umax= 13.33 m/s
Learn more about velocity here https://brainly.com/question/18084516
#SPJ4