Question
Question: A shower head has 20 circular opening each of radius 1 mm. Shower head is connected to a pipe of rad...
A shower head has 20 circular opening each of radius 1 mm. Shower head is connected to a pipe of radius 0.8 cm. The speed of water in the pipe is 3 ms-1. Find the speed of water as it exits from the slower head openings.
A
3.6 ms-1
B
5.6 ms-1
C
7.6 ms-1
D
9.6 ms-1
Answer
9.6 ms-1
Explanation
Solution
A1v1 = A2v2
or π(1)2 × 20v = π82 × 3
or v = 9.6 ms-1h