The bale of hay exerts friction on the arrows.
The frictional force opposes the motion of the arrows.
Work, W = Fdcosθ
θ is the angle between F and d and is 180°
W = Fd cos(180°) = - Fd.
Two identical arrows, one with twice the speed of the other, are fired into a bale of hay. Compared with penetration of the slow arrow, the faster arrow penetrates
A. more than four times as far.
B. the same distance.
C. two times as far.
D. four times as far.
E. none of the above
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Intro to Conservation of Energy concept. You can view video lessons to learn Intro to Conservation of Energy. Or if you need more Intro to Conservation of Energy practice, you can also practice Intro to Conservation of Energy practice problems.
What professor is this problem relevant for?
Based on our data, we think this problem is relevant for Professor Batzill's class at USF.