Hector went to the music store by heading due south at 3 m/s, then turning West and continuing at the same speed for another three blocks. Which of the following is true about Hector's velocity? (1 point)
• Hector's velocity did not change because his speed did not change.
O Hector's velocity did not change because his direction did not change.
• Hector's velocity changed because his speed changed.
• Hector's velocity changed because his direction changed.
The correct answer is:
• Hector's velocity changed because his direction changed.
The correct answer is: Hector's velocity changed because his direction changed.
Hector initially went due south, which means his velocity had a southward direction. However, when he turned west, his direction changed to westward. Velocity is a vector quantity that includes both magnitude (speed) and direction, so any change in direction, regardless of speed, will result in a change in velocity.
To determine whether Hector's velocity changed or not, we need to understand the concept of velocity. Velocity is a vector quantity that combines speed and direction. It determines how fast something is moving in a particular direction.
In Hector's case, let's break down his movements step by step:
1. Hector initially went due south at 3 m/s.
2. He then turned west and continued at the same speed for another three blocks.
Based on this information, we can conclude that Hector's velocity did change. Here's why:
1. Speed: The fact that he continued at the same speed of 3 m/s means that his speed did not change. So, we can eliminate the option that says Hector's velocity changed because his speed changed.
2. Direction: Initially, Hector was heading due south, but then he turned west. Changing direction indicates a change in velocity because velocity considers both speed and direction. Therefore, we can conclude that Hector's velocity changed because his direction changed.
Hence, the correct answer is: Hector's velocity changed because his direction changed.