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Water water is flowing at the rate of 0.7 metre per second through circular pipe whose internal diameter is 2 cm into a cylindrical and radii of whose base is 40 cm determine the increase in the level of water in half hrs

Posted by Heyy Don 3 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Srashti Mittal 3 years, 7 months ago

Speed of water =7/10 m/s Volume of water flow in 1 second through circular pipe=πr^2h =π x1/100 x 1/100 x 7/10 = 7/100000π m^3 Volume of water flow in half hour (30 minutes)(1800 seconds) through circular pipe= π x 7/100000 x 1800 =126/1000π m^3 =126000π cm^3 Volume of water flow in 30 minutes=volume of cylindrical tank 126000π=π x 40 x 40 x h 1260=16h h=1260/16 h=78.75cm

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