Question

The mean velocities at two ends of a
stream tube 10 cm apart are 2.5 m/s and 3
m/s. The convectional tangential accelera-
tion mid-way is
a) zero
b) 0.5 m/s?
13.75 m/s
d) not determinable
[ES 93]​

Answer 1

Answer:

d

Explanation:

not determinable [ES93]

Answer 2

Explanation:

• So we have convectional tangential acceleration
•                  So a = v dy/ds where v is the velocity of the mid section
• So mean velocity at two ends will be 2.5 + 3.0 / 2
•                                                                 = 2.75 m/s
•        So distance of two end of a stream tube in length is 10 cm = 0.1 m
• So change in velocity will be dv/ds
•                                        = 3 – 2.5 / 0.1
•                                         = 5 m/s/m
• Now convectional tangential acceleration
•                                    So a = 2.75 x 5
•                                   Or a = 13.75 m/s^2

Reference link will be

https://brainly.in/question/11420903