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askthefool
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An arrow of mass 20 grams is shot horizontally into a bale of hay with a velocity of 60 m/s. It penetrates a debpt of 20 CM before stopping.
What is the average stopping force acting on the arrow?
I've been doing
W = -F*D
W = -(ma)*d
I'm finding a by using a kinematic equation, v (final ) ^2 = v (initial ) ^ 2 + 2 a (delta) x.
The answer I'm getting is 360 N, but that is not the correct answer. Any ideas?
What is the average stopping force acting on the arrow?
I've been doing
W = -F*D
W = -(ma)*d
I'm finding a by using a kinematic equation, v (final ) ^2 = v (initial ) ^ 2 + 2 a (delta) x.
The answer I'm getting is 360 N, but that is not the correct answer. Any ideas?
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