Question

please a answer
both the questions.

Answer 1

Ans1.
speed = Distance/time
speed =120/4
speed= 30m/s

Ans2.
Distance =speed ×time
=8×50=400m
Now,
speed of shellie if she wants to complete race in 40 sec then
speed = Distance/time
speed =400/40
speed= 10m/s

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