- #1
hndalama
- 32
- 0
Homework Statement
A hunter is aiming a blowgun directly at a bird on a tree branch 4.0 m above the blowgun and 10 m away. If the speed of the dart is 25.0 m/s and the bird stays in place, by what vertical distance will the dart miss the bird?
Homework Equations
s= ut + 0.5at2
The Attempt at a Solution
the angle(b) of the blowgun is
tanb=4/10 b =21.8
in x direction
u = 25cosb =23.2
a=0
s=10
so t=10/23.2 = 0.43
in y direction
t = 0.43
a=-9.8
u= 25sinb = 9.28
s=ut +0.5at2
s= 3.086
vertical distance of miss = 4 - 3.086 = 0.91
My answer is marked wrong but what is wrong with it?