when shooting and arrow than the string in bow B. Which bow gives its arrow a greater acceleration? Or, do neither give their arrow acceleration?
2007-08-30 15:53:48 · 3 answers · asked by Diff 1 in Science & Mathematics ➔ Physics
Why? How do you know?
2007-08-30 16:12:48 · update #1
Bow B provides the greater acceleration since the arrow reaches initial speed with a shorter string draw, i.e., over a shorter distance.
2007-08-30 16:11:47 · answer #1 · answered by kirchwey 7 · 1⤊ 0⤋
Think a bit! Suppose: The stiffer bow (the one that is pulled the least amount) is only pulled 10 inches while the more flexible bow is pulled 20 inches. Then-- the first arrow (stiffer bow) achieves its final velocity in 10 inches while the second arrow requires 20 inches to achieve the same velocity. Think of an analogy-- consider an automobile that starts from a traffic light and has to go the length of 2 football fields (600 feet) before it reaches 60 mph (miles per hour) then consider one that only has to go 20 yards (60 feet) to reach the same 60 mph. As a passenger, which one would pin you back into the seat with the most force! Voila!
2007-08-30 23:23:14 · answer #2 · answered by Anonymous · 1⤊ 0⤋
the greater u pulled the string, the greater energy u'll transfer. to the string
bow A must be pulled back farther = bow A need more energy to give the same acceleration as bow B
more energy means more acceleration...i think that is it
2007-08-30 23:14:41 · answer #3 · answered by Anonymous · 0⤊ 0⤋