Brianna weighs 425 N. She climbs a flight of stairs to a height of 8 m. It takes her 6 seconds.
1 answer:
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Answer:
a)
b)
c)
d)
Explanation:
Given:
- distance down the field in the first interval,
- time duration of the first interval,
- distance down the field in the second interval,
- time duration of the second interval,
- distance down the field in the third interval,
- time duration of the third interval,
a)
velocity in the first interval:
b)
velocity in the second interval:
c)
velocity in the third interval:
d)
We know that the average velocity is given as the total displacement per unit time.