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James covers a distance of 8 meters in the first second of a 100 meter race. then, he sprints at a speed of 9 meters per second. how far is james from the finish line 9 seconds after the race has started? a. 11 c. 28 b. 20 d. 80 please select the best answer from the choices provided a b c d

Sagot :

James is (B) 20 meters far from the finish line 9 seconds after the race has started.

What is the distance?

  • Distance is a numerical measurement of the distance between two objects or places.
  • The distance can refer to a physical length or an estimate based on other criteria in physics or common usage.
  • The distance between two points A and B is commonly expressed as |AB|.

To find the distance:

  • James covers 8 meters in the opening second of the 100-meter race.
  • Then he sprints at a 9-meter-per-second pace.
  • We need to figure out how far James is from the finish line 9 seconds after the race begins.
  • James travels 8 meters in the first second.
  • After running 8 meters, the time remaining in 9 seconds is 9 - 1 = 8 seconds.
  • James completes the distance = speed time = 9 8 = 72 meters in another 8 seconds.
  • The total distance traveled in 9 seconds is equal to 8 + 72 = 80 meters.
  • After 9 seconds, the distance remaining in a 100-meter race is 100 - 80 = 20 meters.
  • 9 seconds into the race, James is 20 meters from the finish line.

Therefore, James is (B) 20 meters far from the finish line 9 seconds after the race has started.

Know more about distance here:

https://brainly.com/question/2854969

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The complete question is given below:

James covers a distance of 8 meters in the first second of a 100-meter race. Then, he sprints at a speed of 9 meters per second. How far is James from the finish line 9 seconds after the race has started?

a. 11

b. 20

c. 28

d. 80

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