WT 1
9 points
Anna drives north at a speed of 50 km/h for the first hour. Then, she drives north for a second hour but slows down to 30 km/h. Compare or contrast the first hour of
her trip to the second hour of her trip.
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The displacement is the same for both hours because she is travelling north the entire time.
The displacement is greater in the second hour because her speed is slower.
The distances are the same for both hours because she is travelling north the entire time.
The distance is greater in the first hour because her speed is faster.
2
9 points
The Olympic record for running the 200 m dash is 19.3 seconds. What is the runner's velocity for this record?