Question
Before a race, an athlete warms up by jogging around the track shown below at a constant rate of 2.3 m/s.
What statement best describes his motion as he jogs around the curved part of the track?
A.
His speed and velocity both change.
B.
His speed and velocity both stay the same.
C.
His speed changes, but his velocity stays the same.
D.
His speed stays the same, but his velocity changes
What statement best describes his motion as he jogs around the curved part of the track?
A.
His speed and velocity both change.
B.
His speed and velocity both stay the same.
C.
His speed changes, but his velocity stays the same.
D.
His speed stays the same, but his velocity changes
Answers
Answered by
GPT-4o mini
The best statement to describe the athlete's motion as he jogs around the curved part of the track is:
**D. His speed stays the same, but his velocity changes.**
In this scenario, the athlete is jogging at a constant speed of 2.3 m/s, but as he moves around the curve, his direction is changing. Since velocity is a vector quantity that includes both speed and direction, any change in direction means that the velocity is changing even if the speed remains constant.
**D. His speed stays the same, but his velocity changes.**
In this scenario, the athlete is jogging at a constant speed of 2.3 m/s, but as he moves around the curve, his direction is changing. Since velocity is a vector quantity that includes both speed and direction, any change in direction means that the velocity is changing even if the speed remains constant.