A dragster maintains a speedometer reading
of 100 km/h and passes through a curve with a constant radius.
Which statement is true?
1. The dragster rounded the curve at a
changing velocity of 100 km/h.
2. The dragster moved along a straight line
at a constant velocity of 100 km/h.
3. The dragster rounded the curve at a
changing speed of 100 km/h.
4. All are wrong.
5. The dragster rounded the curve at a con-
stant velocity of 100 km/h.
1 answer
1. is true, but it should clarify that the direction of the velocity is changing. 100 km/h is a speed, not a velocity
3 answers