An arrow was fired horizontally from a height of 1.5 meters by an archer 40.0 meters...
An arrow was fired horizontally from a height of 1.5 meters by an archer 40.0 meters away and it struck my knee 0.5 meters above the ground. Neglecting air resistance, at what initial velocity must the arrow have been fired in order for me to no longer be an adventurer?
Homework Answers
Given that the arrow was fired horizontally, so initial vertical
velocity, 
Consider the vertical motion of the arrow
vertical distance traveled, 
Use formula 
============
Consider the horizontal motion of the arrow
There is no acceleration in horizontal direction, so horizontal speed remains constant
Speed =Distance/Time
Horizontal Speed =Horizontal Distance/Time
ANSWER :
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