Which is an example of velocity?
A. A pickup driving 30 km in 20 minutes.
B. A car slowing down on a sharp curve.
C. An airplane traveling 450 km/h.
D. An 18 wheeler driving west at 50 km/h.***
I think the answer is D, but please check. Thank you!
Thank you!
To determine which option represents an example of velocity, we need to understand what velocity is. Velocity is a vector quantity that represents the rate at which an object changes its position in a given direction. It includes both the speed of the object and the direction of its motion.
Let's analyze each option:
A. A pickup driving 30 km in 20 minutes: This option provides information about the distance traveled, but it doesn't specify the direction. Velocity requires both speed and direction, so this option does not represent velocity.
B. A car slowing down on a sharp curve: This option doesn't give any information about the speed or direction of the car. It only mentions that the car is slowing down, so it does not represent velocity.
C. An airplane traveling 450 km/h: This option provides the speed of the airplane but doesn't specify a direction. Again, velocity requires both speed and direction, so this option does not represent velocity.
D. An 18-wheeler driving west at 50 km/h: This option includes both the speed (50 km/h) and the direction (west) of the truck. Therefore, option D represents an example of velocity.
Based on the analysis, your answer is correct. Option D, an 18-wheeler driving west at 50 km/h, is an example of velocity because it includes both the speed and direction of the object.