Question

Two sprinter run the same race of 100 m. One runs at a speed of 10 metre per second and the other runs at 8 metre per second .By what time will the first spinter will beat the others sprinter.

EXPLAIN STEP BY STEP, PLEASE ​

Answer 1

Answer:

Distance covered (D)= 100m

Speed of the first sprinter(v1)=10 m/s

Speed of other sprinters(v2)=8 m/s

Time taken by first sprinter (t1)= D/v1

t1=100/10 s=10 s

Time taken by other sprinters(t2)= D/v2

t2=100/8 s=12.5 s

Time by which first sprinter beats other sprinters=(t2 - t1)=(12.5 - 10)s=2.5 s

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