Newton Newton's Laws of Motion describe the way a body responds to applied forces.
Motion, Forces, & Newton's Laws Review
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Transcript of Motion, Forces, & Newton's Laws Review
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Word Problems
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1. Julie runs 0.99 laps on a 400 m track. What is her total
distance travelled?
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2. A cat runs 17 m into the street where a car runs over it. What is the cat’s total distance travelled? What is its displacement?
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If we’re trying to measure how fast a pitched ball is moving, then we need to find the distance
it traveled and divide it by the total time it took to travel.
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First find the distance traveled:
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If the pitching mound is 60 ft. 6 in. from home plate, that is roughly 18.5 meters.
v = d/t
and in this case, distance is 18.5 metersSo . . . Let’s say it took Chewy’s baseball
0.5 seconds to reach home plate, then . . .
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What is the velocity of the baseball?
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3. Jamie walks to the bathroom 36 m away. It takes her 12 seconds.
What is her velocity?
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4. Mrs. Lonnberg kicks a cat. Its speed increases from 2 m/s to 14 m/s.
This took 3 seconds. What was the cat’s
acceleration?
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5. You punch someone.His face accelerates at 2 m/s2.The mass of his head is 12 kg.
With what force did you punch him?
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Are this man’s forces balanced?How do you know?
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Are there balanced forcesin our solar system?How do you know?
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Are these sky divers’ forces balanced?
How do you know?
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What is Newton’s 1st Lawotherwise known as?
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What is Newton’s 2nd Law?
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What two factors affect
acceleration?
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What two factors affect
acceleration?
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What is Newton’s 3rd Law?
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What law says that any two massesexert an attractive force on one another?
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How do you calculate the force of gravity between 2 objects?
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