How long dose long term alcohol abuse affect the liver?
2 answers:
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Answer:
The distance traveled is 109.58 m
Explanation:
The Speed of sound in air = 344 m/s
Let the time in which the dime dropped by the man reach an impact in the well = t₁
Let the time in which the sound travel from the well to the man = t₂
Then
1/2× 10 × t₁² = 344 × t₂ which gives;
5 × t₁² = 344 × t₂.........................(1)
Also the total time before the man heard the dime = t₁ + t₂ = 5
Therefore;
t₂ = 5 - t₁
Substituting the value of t₂ in equation (1), we have;
5 × t₁² = 344 × (5 - t₁)
5·t₁² + 344·t₁ - 1720 = 0
Using the quadratic formula, we have;
Which gives;
t₁ = 4.68 s or -73.48 s
Therefore, with the positive value for t₁ = 4.68 s, we have
The distance = 1/2× 10 × 4.68² = 109.58 m
The distance traveled = 109.58 m.
If hunter fires a bullet 2 degree below the horizontal
then the components of its speed is given as
so here initial speed of the bullet is not zero but have some magnitude in downwards direction
While the other bullet is dropped downwards so its initial speed will be zero
So here we can say
so if we use above equation we will find that the bullet that is shot at 2 degree below the horizontal will reach the ground first as its speed is more