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33 votes
in a 100 m race, the first place runner took 15.7 seconds to reach the finish line while the second place runner took 16.1 seconds to reach the finish line. How much faster did the first place winner run than the runner who finished second? show steps

User Bohney
by
3.3k points

2 Answers

27 votes
27 votes

Answer:

0.4 seconds faster / 0.158 m/s

Explanation:

Hope this helps

User Anton Stafeyev
by
2.8k points
22 votes
22 votes

Answer:

0.158 m/s

Explanation:

Let the first runner be A.

Let the second runner be B.

Given the following data;

Total distance = 100m

Time A = 15.7 seconds

Time B = 16.1 seconds

To find their rate of speed;

For runner A;

Speed = 100/15.7

Speed A = 6.369

For runner B;

Speed B = 100/16.1

Speed B = 6.211 m/s

Next, we find the difference between their speed;

Difference = Speed A - Speed B

Difference = 6.369 - 6.211

Difference = 0.158 m/s.

Therefore, the first runner was faster than the second runner by 0.158 meters per seconds.

User Ritesh Mathur
by
2.6k points