Asked by Physic inexpert

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
Answered by DrBob222
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.
Answered by Zayed
Why don't you give the answer??????? 😠😠😠😠
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