Study the free body diagram above. Which scenario below can best be described with this free body diagram? A. a cup is at rest o
n a table. B. a car coasts down a hill. C. a child drops a penny from the top of a building. Neglect air resistance. D. a bartender slides a glass of beer to a patron at the end of a bar. Neglect air resistance.
1 answer:
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<h2>Answer:</h2>
<em><u>Velocity of throwing arrow = 43.13 m/s.</u></em>
<h2>Explanation:</h2>In the question,
Let us say the height from which the arrow was shot = h
Distance traveled by the arrow in horizontal = 61 m
Angle made by the arrow with the ground = 2°
So,
From the <u>equations of the motion</u>,
Now,
Also,
Finally, the angle made is 2 degrees with the horizontal.
So,
Final horizontal velocity = v.cos20°
Final vertical velocity = v.sin20°
Now,
u = v.cos20° (No acceleration in horizontal)
Also,
So,
We can say that,
<em><u>Therefore, the velocity with which the arrow was shot by the archer is 43.13 m/s.</u></em>