Which statement is incorrect and why?

Question

The car traveled around the track at a constant velocity.

The car traveled around the track at a constant speed.

Answer 1

Remember, velocity is a vector meaning it has magnitude AND direction.  When you change either one, you change the velocity.

So if you have a circular track, you change direction even if you maintain the same speed, right?  Then you've changing your velocity.

So the first one is incorrect.

Hope this helps

Answer 2

i think the second one is incorrect. velocity is the change in direction AND magnitude while speed is only magnitude, since the car travels around the track, this implies that the car is is contantly making a change in its direction but the speed is the same, hence the car is travelling at a constant velocity. this is the same meaning as the car traveled around the track at a constant speed with a constant change in direction, a constant change in direction is the car is constantly changing its direction whilst moving on the track.

this is my opinion, i am just a newbie LOL and i am not a good physic student, in fact i got b4 in o level  

Answer 3

I know acceleration is the same while the speed can be different