If you were to aim right at the bulls-eye, the arrow would fall under gravity and drop below the intended target. if you intend to hit a bulls-eye it is necessary that you aim slightly above it. suppose the arrow speed is the same (70 m/s) and the target is 10 meters away. what launch angle, θ, is needed so that the arrow hits the bulls-eye?

Here range of the arrow where it will hit the target is given as

now the vertical displacement of the arrow for whole motion is ZERO

so we will have

now in the above time it will hit the target at horizontal distance of R = 10 m

so we will have

now we know that

now we will have

answer: what are you talking about?

explanation:

.) the observation by semmelweis that more mothers died of childbed fever when their doctors also worked in the morgue