Physics

Randi ran two laps around a 400m track.She completed the first lap in 50seconds and then decreased her speed by 5% for the second lap.
Find:
A)her speed on the first lap
B)her speed on the second lap
C)her total time for the two laps
D)her average speed for the two laps

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  1. A. distance = 400 m; time = 50 seconds
    distance = rate x time. Solve for rate.

    B. distance = 400 m
    time for second lap is 50s-0.05(50s) = ?
    solve for rate.

    C. total time = time for first lap + time for second lap = ?

    D. average speed (rate) = total distance/total time.

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    DrBob222
  2. Why don't you give the answer??????? ๐Ÿ˜ ๐Ÿ˜ ๐Ÿ˜ ๐Ÿ˜ 

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