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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