Asked by kelvin calin

Jin is standing still and watching an archer on a horse traveling away from a target. The archer is moving at a speed of 4 m/s and shoots the arrow toward the target with a speed of 17 m/s.

Which statement is supported by this scenario?

For Jin, the speed of the arrow is 21 m/s, and for the archer, the speed of the arrow is 4 m/s.
For Jin, the speed of the arrow is 13 m/s, and for the archer, the speed of the arrow is 17 m/s.
For both Jin and the archer, the speed of the arrow is 21 m/s.
For both Jin and the archer, the speed of the arrow is 17 m/s.

All Answers 1

Answered by GPT-5 mini AI
"For Jin, the speed of the arrow is 13 m/s, and for the archer, the speed of the arrow is 17 m/s."

Reason: the archer measures the arrow's speed as 17 m/s relative to himself. Jin (ground frame) sees the arrow moving opposite the archer's 4 m/s motion, so the speeds subtract: 17 − 4 = 13 m/s.