6. A bus travels 280 km south along a straight path with an average velocity of 88 km/h to the south. The bus stops for 24 min,
1 answer:
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Answer:
The correct option is c. 75 for this question
Explanation:
The correct option is c. 75 for this question:
Let's see how.
Continuity Equation is given as:
AcVc = AaVa
Where,
Aa = Area of Aorta
Ac = Area of the capillary
Va = Fluid speed in Aorta
Vc = Fluid speed in Capillary
So,
Assuming the fluid is the ideal one/
/4
Vc=
/4
Va
Vc=
Va
Dc = Da x
Dc = 2.5 cm x
Dc = 73.192 cm
Dc = 75 approximately
Hence, the diameter of the capillary = 75 cm approximately
In an uniformly accelerated motion, the velocity of the object follows the law:
where
is the initial velocity, a the acceleration and t the time.
In our problem, the robot starts from rest, so the initial speed is zero:
. The robot is in free fall, so the acceleraion is the gravitational acceleration 
. therefore, after a time 
, the velocity is
where
In our problem, the robot starts from rest, so the initial speed is zero: