A 20 N unbalanced force causes an object to accelerate at 1.5 m/s2. What is the mass of the object?
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To solve this problem it is necessary to apply the concepts related to the continuity of fluids in a pipeline and apply Bernoulli's balance on the given speeds.
Our values are given as
From the continuity equations in pipes we have to
Where,
= Cross sectional Area at each section
= Flow Velocity at each section
Then replacing we have,
From Bernoulli equation we have that the change in the pressure is
Therefore the speed of flow in the first tube is 0.9m/s