Lily is jogging with a velocity of 4 m/s when she speeds up to cover a distance of 21 meters in 3 seconds. How fast is Lily running now?
Y'all, I'm so lost and I can't find the right equation, please help.
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u=4m/sec
t=3sec
s=21m
s=ut+1/2at2
21=4x3+1/2xax3x3
a=2m/sec2
v=u+at
v=4+2x3
v=10m/sec
t=3sec
s=21m
s=ut+1/2at2
21=4x3+1/2xax3x3
a=2m/sec2
v=u+at
v=4+2x3
v=10m/sec
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