Answer:
v/U=0.79
Explanation:
Given u=
Now for the given flow to be possible it should satisfy continuity equation
Applying values in this equation we have
Thus we have
Hence proved
For maximum value of v/U put y =
Thus solving we get using the given values
v/U=0.79
I am walking to the end of the room holding three textbooks.
Playing tug of war
Moving boxes to move out of your house
Assuming both billiard balls have the same mass, conservation of momentum says
where m = mass of both billiard balls, and v₁ and v₂ = their initial velocities, and v₁' and v₂' = their final velocities. The masses are the same so the exact value of m is irrelevant. The first ball has initial speed 5 m/s and the second is at rest, so
After the collision, the first ball has speed 4.35 m/s and is moving at angle of 30° below the original path, so
Then the second ball has final velocity vector
so it moves with speed
at an angle of
or about 60.5° above the original line of motion.
Answer: 4 herz is the correct answer trust me!!!!!
Explanation:
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Description
In classical mechanics, impulse is the integral of a force, F, over the time interval, t, for which it acts. Since force is a vector quantity, impulse is also a vector quantity. Impulse applied to an object produces an equivalent vector change in its linear momentum, also in the resultant direction.