Question
A stream of water flowing horizontally with a speed of 15 m/s gushes out of a tube of cross-sectional area 10–2 m2. What is the force exerted by stream on the tube?
Solution
The force exerted by the stream on the tube is,
Given,
Area of tube, a = 10-2 m2
Speed of water gushing out, v = 15 m/s
Density of water,
Given,
Area of tube, a = 10-2 m2
Speed of water gushing out, v = 15 m/s
Density of water,
∴ Force exerted by a stream on the tube is,
= 2250 N
= 2250 N
