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10. A tank originally contains 380 litres of brine holding 450 N of dissolved salt. Eight litres/min of brine containing 3.75 N/litre of salt enters the tank and the mixture assumed uniform leaves at the rate of 12 litres/min. Determine the amount of salt after 10 min. When will the amount of salt in the mixture be 500 N? What is the maximum amount of salt in the mixture?

10. A tank originally contains 380 litres of brine holding 450 N of dissolved salt. Eight litres/min of brine containing 3.75 N/litre of salt enters the tank and the mixture assumed uniform leaves at the rate of 12 litres/min. Determine the amount of salt after 10 min. When will the amount of salt in the mixture be 500 N? What is the maximum amount of salt in the mixture?

Trigonometry (MindTap Course List)
Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
Chapter6: Topics In Analytic Geometry
Section: Chapter Questions
Problem 33CT
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10. A tank originally contains 380 litres of brine holding 450 N of dissolved salt. Eight litres/min of brine containing 3.75 N/litre of salt enters the tank and the mixture assumed uniform leaves at the rate of 12 litres/min. Determine the amount of salt after 10 min. When will the amount of salt in the mixture be 500 N? What is the maximum amount of salt in the mixture?
Transcribed Image Text:10. A tank originally contains 380 litres of brine holding 450 N of dissolved salt. Eight litres/min of brine containing 3.75 N/litre of salt enters the tank and the mixture assumed uniform leaves at the rate of 12 litres/min. Determine the amount of salt after 10 min. When will the amount of salt in the mixture be 500 N? What is the maximum amount of salt in the mixture?
6. A body weighing 445 N is drawn along a rough surface. The force applied in the direction of motion is 135 N, while the frictional force is 90 N. If there is an air resistance whose magnitude ( in N) is equal to twice the velocity ( m/s ) at any instant, determine the velocity at any time t. Assume that the body starts from rest.
Transcribed Image Text:6. A body weighing 445 N is drawn along a rough surface. The force applied in the direction of motion is 135 N, while the frictional force is 90 N. If there is an air resistance whose magnitude ( in N) is equal to twice the velocity ( m/s ) at any instant, determine the velocity at any time t. Assume that the body starts from rest.
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