While running around the track at school, Milt notices that he runs due East on the 100m homestretch and due West on the 100m ba
2 answers:
The correct answer is
A) The homestretch and backstretch have velocities with the same magnitude only.
Explanation:
Velocity is a vector - it means it consists of:
1) A magnitude: called speed, it is given by the ratio between the total distance covered, d, and the time taken, t:
2) A direction: the direction of motion
In this example, we see that the homestretch and the backstretch have same speed, because the same distance (100 m) is covered in the same time interval (100 m), however the direction is different (the homestretch is due East, while the backstretch is due West). So, the correct answer is
A) The homestretch and backstretch have velocities with the same magnitude only.
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