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Motion and Forces — Test Answers

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Hunter’s velocity was 4.5 meters per second At the end of his race, his velocity was the same. Which best describes his movement?

A
His time was constant.
B
His acceleration is zero.
C
His movement stopped.
D
His acceleration was positive.
25

Based on the graph of velocity over time, which could be the initial velocity and the final velocity for this graph?

A
initial is equal to 0 meters per second ; final is equal to 2.5 meters per second
B
initial is equal to 3.0 meters per second ; final is equal to 6.0 meters per second
C
initial is equal to 6.0 meters per second ; final is equal to 3.0 meters per second
D
initial is equal to 2.5 meters per second ; final is equal to 2.5 meters per second

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