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aleksandr82 [10.1K]
3 years ago
7

Two runners are competing in track meet. Samantha runs with a speed of 10 m/s and completes her race in 10 seconds. Jordin takes

15 seconds to finish her race, running with a speed of 8 m/s. Which statement best describes the difference in the distance each runner ran?
A. Jordin's distance was longer by 10 meters.
B. Jordin's distance was longer by 20 meters.
C. Samantha's distance was longer by 2 meters.
D. Samantha's distance was longer by 10 meters.
Physics
2 answers:
Mashutka [201]3 years ago
6 0
The answer for this question is B.
Nostrana [21]3 years ago
3 0

Answer:

B. Jordin's distance was longer by 20 meters.

Explanation:

The distance Samantha runs = Samantha's speed ×  Samantha's time = 10 m/s × 10 s = 100 m

The distance Jordin runs = Jordin's speed × Jordin's time = 8 m/s × 15 s = 120 m.

The difference in the distance run = (120 - 100) m = 20 m.

So, Jordin's distance is 20 m more than that of Samantha.

So, Jordin's distance was longer by 20 meters is the answer.

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I need help, ASAP, I know what thermal energy is, but how does a skater use it when on the track?
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4 0
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A piece of styrofoam has a charge of 0.002 mC and is placed 0.5 m from a grain of salt with a charge of 0.03 nC. How much electr
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Answer:

2.16×10⁻⁶ N

Explanation:

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Where F = electrostatic force, k = coulomb's constant, q = charge on the styrofoam, q' = charge on the grain of salt, r = distance between the charges.

From the question,

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