In a Western movie, a person shoots an arrow backward from a fleeing horse. If the velocity of the horse relative to the ground is $13 \mathrm{~m} / \mathrm{s}$ west and the arrow's velocity relative to the horse is $38 \mathrm{~m} / \mathrm{s}$ east, what is the arrow's velocity with respect to the ground?
A) $41 \mathrm{~m} / \mathrm{s}$ east
B) $41 \mathrm{~m} / \mathrm{s}$ west
C) $25 \mathrm{~m} / \mathrm{s}$ east
D) $25 \mathrm{~m} / \mathrm{s}$ west

Question

Quizplus · Accepted Answer

The arrow's velocity relative to the ground is the sum of the horse's velocity and the arrow's velocity relative to the horse. Since the horse is moving west and the arrow is shot east, the velocities are in opposite directions: $38 \mathrm{~m/s} - 13 \mathrm{~m/s} = 25 \mathrm{~m/s}$ east.

In a Western Movie, a Person Shoots an Arrow Backward 13 m/s13 \mathrm{~m} / \mathrm{s}13 m/s

In a Western Movie, a Person Shoots an Arrow Backward $13 \mathrm{~m} / \mathrm{s}$